Why AI Services Are So Picky About Your Network
An ordinary web page is a short transaction — request, response, done. Once the page has downloaded, it does not matter if the connection drops. AI services are different. A single chat turn runs several seconds to several tens of seconds of inference on the server, and throughout that window the client and server must keep a working long-lived connection open; streaming output also pushes the generated text back to the browser in fragments. If the link hiccups during that window, what you feel is an answer that stops halfway, or a spinner that never produces the first word. On top of that, AI services tend to be more sensitive to abuse than most sites — compute is expensive and accounts can be resold — so they inspect exit IPs more closely than the average website.
Exit IP Reputation and Ownership
AI services look at your exit IP at three moments: sign-up, login, and when you start a chat or call an API. They look not only at geography but at the history of that IP block. If the same block has long been shared by a large number of accounts, hammered by automation scripts, or sits in an address range flagged as a data center, its risk weighting rises sharply. This is why the same account on the same computer can behave completely differently after switching routes: the account has not changed, but the IP's profile has.
Residential broadband addresses and data center addresses are usually not judged on the same tier. A data center address is not automatically unusable, but its reputation depends more on whether that range has a troubled history. A data center exit that stays stable over time with a normal usage rhythm builds its reputation; one that is switched constantly and pushes a large volume of requests in a short period gets dragged down quickly. The practical takeaway: rather than probing a different region every day, settle on one region and use it long term.
How Region Checks Are Cross-Verified
Region checks rarely rely on a single field. The common pattern is a three-way cross-check: the region recorded when the account was created, the region the payment method belongs to, and the location of the exit IP on each visit. When all three agree over time, the risk score stays lowest; when they conflict, or the exit region jumps around (the US today, Japan tomorrow, Europe the day after), the risk score accumulates. Past a certain point the response is not an immediate ban but a gradual tightening: first extra verification, then some features becoming unavailable, and only last a login restriction.
So which region works is only the first question; the more important one is whether that region keeps working long term. When choosing routes, favor regions that stay stable over time rather than whichever looks most permissive right now.
What Long-Lived Connections and Streaming Demand From a Link
A chat page is not one request and one response. The client first opens a connection to the server; once inference starts, the server pushes the result back continuously in token-sized fragments, and both ends must keep the connection alive the whole time. A problem anywhere along that path stalls the output: congestion on the cross-border leg delays fragments, an intermediate device recycles a connection that has been idle too long, or a proxy layer buffers fragments and sends them as one lump. The last case is the hardest to spot — the connection never drops, but instead of appearing piece by piece the output goes blank for a long stretch and then floods out all at once.
Packet Loss, Jitter and Time to First Token
On an ordinary web page, packet loss is almost invisible: one retransmission and the user sees no difference. In a long-lived, streaming scenario, though, loss triggers retransmission and congestion-control backoff, and layered on top of fragment-by-fragment output it shows up as obvious stutter. Jitter — the spread of latency — affects the experience more than average latency does: a link averaging 60 ms but spiking to 300 ms feels worse than a steady 90 ms link. On cross-border links during peak evening hours, latency rises and jitter widens at the same time, so the same route can feel completely different in the afternoon and at 10 p.m.
A Simple Order of Diagnosis
When an AI tool misbehaves, first work out whether the region is being rejected or the link is unstable. A page that says the region is unsupported, or a feature that disappears from the UI, is a region-check problem. A page that loads but cuts off mid-answer, or takes forever to produce the first token, is a link problem. The first calls for changing the route's region, the second for changing the route type — the two fixes are completely different, and trying them at random only wastes time.
Mainstream AI Tools: Availability at a Glance
Different AI tools put the emphasis in different places. Some concentrate on sign-up and login and are relatively relaxed once you are through; some re-check at the start of every session; others tie checks more tightly to subscription status and editor authorization. The table below lists, for the common tools, where the checks focus, what they expect from your exit, and the typical symptoms — so you can locate the problem before touching anything.
| Tool | Where checks focus | Exit requirements | Typical symptoms |
|---|---|---|---|
| ChatGPT | Exit region + IP reputation | A stable region; avoid hopping between regions in a short window | Long spinner after login, output stopping mid-conversation |
| Claude | Strict region checks; sign-up and day-to-day use must match | Keep the same regional exit long term | Sign-up page unavailable, long conversations cut off |
| Gemini | Tightly bound to the account region | Exit region must match the account region | Some features unavailable, message saying the region is unsupported |
| Copilot | Tied to account and subscription status; checks are relatively relaxed | A stable exit and a low-jitter link | Sidebar fails to load, code completion times out |
| Midjourney | Depends on the connection quality of the third-party chat platform | Stable long-lived connections, low jitter | Image uploads fail, generation stops partway |
| Cursor | Long-lived editor connections and API calls at the same time | A fixed exit, low jitter | Codebase indexing stalls, noticeable completion lag |
Why Some Tools Are Hard to Sign Up For but Stable Once You Are In
These tools concentrate their checks up front: region is verified at sign-up, verified once more at login, and after that the focus is mainly on whether account behavior looks abnormal, with a fairly high tolerance for exit changes within a single session. The way to handle them is to put your effort into sign-up and first login — one region, one exit, get through on the first try, and do not keep switching regions and retrying on the same day.
Why Some Tools Re-Check on Every Session
These tools read the current exit information each time a session is established and compare it with the account region. If the exit drifts, that session can be downgraded or cut off. They place the highest demands on a fixed exit, so they pair best with a route whose region never changes and whose link quality is steady — not with a shared exit you switch on a whim.
Chat Tools vs. Editor Tools
Chat tools carry a load profile of a few long-lived connections held open for a long time; editor tools combine long-lived connections with a high rate of short requests — code completion, context indexing and file sync keep firing small requests while a long-lived connection stays open. The latter is more sensitive to jitter, because the round-trip time of those short requests shows up directly as completion lag. That is why developer setups deserve their own configuration, covered in the developer section below.
About Tool Availability
Each AI tool sets its own availability regions, account policies and check rules, and changes them at any time. This page describes common patterns at the network level only and is not a promise that any third-party service will be available. For more detailed, account-stage experience, see Claude Region Checks and Risk Controls: Hands-On Recommendations.
What to Watch During Sign-Up and Login
The account stage is the part of the chain where mistakes cost the most. Sign-up, first login and first payment all leave records, and every later check compares against them. Get this stage right and everything afterwards is easier; get it wrong and you will spend several times the effort correcting it.
Consistency Matters More Than the Region You Pick
Decide on one region first, then keep sign-up, login and day-to-day use all inside it. The common mistake is to sign up in one region and then use a faster one day to day, on the reasoning that it opens either way. That creates a conflicting signal outright, and the conflict stays in the account record — it does not fade with time. If you really do need to change regions, change once and stay there, rather than flipping back and forth between two.
The region your payment method belongs to is part of the same comparison. If you can, keep the payment method in the same region as the account and remove one source of conflict. This service accepts Alipay / WeChat Pay / USDT; pick whichever suits your situation.
Account Details and Usage Rhythm
After signing up, do not immediately change a large amount of profile information, and do not log in from several devices in rotation within a short period. Normal users behave with a rhythm: sign up, log in, use the service for a while, occasionally change a setting. Bulk registration, frequent profile edits and logging in from several regions in a short window are all abnormal patterns and get flagged separately.
Also, do not share one account among several people. Sharing means the same account appears from several different exits at once, which reads as abnormal almost by definition. This service's subscription allows unlimited devices, so one account can be online on several of your own devices at the same time — that is a separate matter from a third-party AI tool's account rules, and the two should not be confused.
Preparing for Verification
For login verification, prefer time-based codes from an authenticator app over one-time email links: email arrival times are unpredictable, expired links have to be requested again, and repeated requests are themselves an abnormal signal. An authenticator app works offline, is unaffected by the link, and is the steadier choice.
If you do need to receive verification email, confirm in advance that the mailbox is reachable and keep an eye on how long delivery takes. If the message does not arrive for a long time, check the mailbox side first and do not keep hitting resend — a burst of resend requests in a short window gets recorded.
What to Do When You Hit a Block Message
- Stop retrying. Repeated failures keep adding to the risk score, and the more you try the worse it gets.
- Switch the exit back to the region you signed up in, confirm the route is actually in effect, and then wait for a while.
- Clear the browser's site data for that domain and log in again, to rule out stale local state.
- If the message mentions region, check whether the account region and the current exit match — do not blindly jump to a third region.
- If repeated attempts change nothing, consider starting over with a new account and getting region consistency right from the beginning.
What Not to Do
Do not register several accounts in a row from the same device in a short window; do not switch to another region and retry the moment you see an abnormal-activity message; do not hand your account credentials to a third-party sign-up service. All three push the risk score to a level that is very hard to recover from.
Using the Web App: Session Stability and Streaming Output
Once the account stage is behind you, day-to-day experience is almost entirely decided by link quality. Web app problems are rarely about failing to connect; most are about connecting but not smoothly — a slow first token, output that cuts out, long conversations that get more fragile the further they go. This chapter takes the symptoms one at a time.
Why Long Conversations Break More Often
The longer the context, the longer a single inference pass takes on the server, and the longer the connection has to stay active. The chance of a break accumulates with time: a 5-second request is very unlikely to hit a link problem, while a 40-second request carries noticeably more risk at the same link quality. That is why short Q&A works fine while long conversations keep dropping — a typical pattern that does not mean the route is broken, only that the link needs lower jitter.
A few practical ways to cut down on breaks: split very long tasks across several turns instead of letting the model generate for minutes on end; do not switch away from the tab or let the device sleep while output is running; and if you have to work over mobile data, stay somewhere with a stable signal.
A Few Browser-Side Settings
To save power, browsers throttle background tabs: timers slow down, network requests get queued, and pages with no interaction for a while are suspended. Streaming output depends on continuous connection activity, so once a tab is treated as background, output can be delayed. Keeping the page in the foreground while you use it, or adding the site to the browser's exception list, reduces this kind of interference.
Extensions can be involved too: ad blockers, script managers and privacy tools intercept or rewrite page requests, and in some cases cut the streaming channel. When troubleshooting, open the page in a no-extensions mode first and compare — that quickly tells you whether an extension is the cause.
How to Trade Off Multiple Tabs
Running long tasks in several AI tabs at once makes multiple long-lived connections compete for the same route's bandwidth and connection quota. Everything slows down and it looks as if the whole route has degraded. In practice, run one or two long tasks at a time, pause the rest, and leave the link's resources to whichever one is actively streaming.
Why Peak Hours Feel Different
Cross-border links are noticeably more congested in the evening than during the day, with latency and jitter rising together. This is an objective fact about the link, not an account problem. The test is simple: same account, same route, fine by day and slow at night almost always points to link congestion. Switching to a dedicated-line route usually helps a lot here, while changing regions repeatedly does essentially nothing.
A Baseline for What Feels Right
An acceptable baseline for the web app: after you hit send, the first token appears within a noticeable but not painful delay, output keeps advancing, and there are no long blank stretches. If the first token is always slow but the rest of the output is fine, the problem is usually a long detour at the exit; if the first token is fine but output stalls midway, the problem is usually link jitter.
API Calls vs. the Web App: Different Requirements
Carrying web app habits straight over to APIs is the most common way to get burned. Both reach the same service, but the connection model, the way failures show up and the troubleshooting steps are all different. API calls are made by code, there is no just refresh and see, a timeout is a failure, and a badly written retry policy makes things worse.
| Dimension | Web app | API calls |
|---|---|---|
| Connection pattern | A few long-lived connections, held open for a long time | Many short connections, opened and closed at high frequency |
| Exit requirements | A stable region is enough | A fixed exit is better, and makes IP allowlisting possible later |
| Timeout tolerance | Tens of seconds; a person can wait | First-byte timeout is usually just a few seconds; streaming renewals are counted separately |
| Failure handling | Manual retry, judged by a person | Automatic retry, which needs backoff and idempotency |
| How quotas are counted | By account and subscription status | Billed and rate-limited per key, with concurrency capped separately |
Why a Fixed Exit Matters
In the web app, the worst case when you change exits is that the current session gets cut and you send the message again. APIs are different: an exit that changes often makes the server sort your requests under different source profiles, which at best triggers extra verification and at worst puts your key on a watch list. Programmatic calls also tend to run at higher concurrency, and the two together carry far more risk than the web app. Giving your API a route with a fixed exit is the least troublesome option.
Concurrency, Connection Reuse and Short Connections
API clients usually maintain a connection pool. With sensible pool settings, requests reuse existing connections and round-trip overhead stays low; configured to open a new connection every time, they generate a flood of handshakes, and on a cross-border link each handshake costs several extra round trips that add up fast. When troubleshooting, confirm whether the client has connection reuse enabled before looking at the link.
Higher concurrency is not automatically better either. A cross-border link has limited usable bandwidth, so pushing concurrency up raises per-request latency, lowers overall throughput and makes server-side rate limits more likely. Start low, raise it gradually, and watch how the error rate responds.
Streaming Responses and Timeout Settings
Timeouts for streaming endpoints should be set in two parts: a first-byte timeout and an overall timeout. Keep the first-byte timeout short so failures surface quickly, and the overall timeout long, because long answers genuinely take a long time. A single total timeout means either short answers fail too slowly or long answers get killed by mistake. Also, if a connection drops after partial content has arrived, your retry logic has to consider whether it will be billed twice or produce duplicate output — another thing idempotency has to handle.
Rate Limits and Backoff Strategy
When you get a rate-limit response, the right move is exponential backoff with random jitter, not an immediate retry. Retrying immediately keeps hitting the limiter and stretches out the observation window. Start backoff at seconds, scale it up, and set a maximum retry count; once you exceed it,log the failure and give up, leaving the business layer to decide whether to degrade. For the full developer-side comparison, see Which VPN Is Best for AI API Calls.
Developer Setups: Command Line, IDE Plugins and CI
Developer setups have three traits: the exit must be fixed, concurrency must be controllable, and credentials must never leave the repository. This chapter covers the key configuration points for three kinds of environment; the addresses and keys in the examples are placeholders — replace them with your own values in real use.
Command-Line Environment Variables
Most command-line tools read the standard proxy environment variables. Point the proxy address at the listening port of the client on your machine (use the actual port shown in the client UI), and set both the uppercase and lowercase forms so that tools that only recognize one of them still work.
export HTTPS_PROXY=http://127.0.0.1:7890
export HTTP_PROXY=http://127.0.0.1:7890
export NO_PROXY=localhost,127.0.0.1
curl -sS https://api.example.com/v1/models \
-H "Authorization: Bearer sk-xxxx"To make the settings persist, put these three lines in your shell's startup file; to use them for a single session only, run them directly in the terminal. Note that NO_PROXY should exclude local addresses, otherwise requests to services on your own machine will also take a detour through the proxy and produce puzzling timeouts.
IDE Plugins and Editors
Editor tools have two parts: the editor's own network requests and the plugin's network requests. Some editors inherit the system proxy, some need it specified separately in settings, and some only inherit environment variables. The recommended order is: set the system-level proxy first, then check whether the editor settings have a separate proxy field, and finally launch the editor from the terminal so it inherits the environment variables there. Confirm all three and you will rarely miss anything.
If the editor uses a self-signed certificate or has had certificates replaced, certificate validation on the plugin side may fail. In that case, use the editor's built-in network diagnostics first to confirm which step fails, then decide whether to adjust certificate settings — do not simply turn validation off.
Containers and Continuous Integration
Networking inside a container does not inherit the host's proxy settings by default; you need to pass them in explicitly when starting the container, or configure them separately inside it. Continuous integration environments need extra attention on two points: first, the exit address is usually assigned by the platform and may not be fixed; second, build jobs often run concurrently, so the request volume in a short window is far higher than human use.
- Pin the exit address down, which makes source management easier on the server side and simplifies troubleshooting.
- Limit the number of concurrent builds so that one key does not generate a flood of requests in a short window.
- Add timeouts and retry caps to API calls so pipelines do not hang for long periods.
- Put keys in the platform's secret management feature; never write them into repository files or build logs.
Credential Boundaries
An API key is equivalent to account permissions, and leaking it means your quota gets consumed or even your account restricted. Three hard rules: keep keys only in environment variables or the platform's secret manager; filter key fields out of log output; and always use obvious dummy values (such as sk-xxxx) in sample code, documentation and screenshots. This is a separate matter from this service's subscription credentials, but the principle is the same — a subscription link is also a credential, so do not share it publicly.
About Getting Your Subscription
This service's client and subscription link are obtained from the user panel after logging in; the site does not provide static installer download addresses. A subscription link is an account credential, so do not paste or share it in public.
Choosing Routes by Scenario: IEPL, Relay and Direct
The route type sets the ceiling on how good things can feel. In the same region, on the same device, switching route type makes a clear difference to how stable long conversations are. Understanding the three types is more useful than memorizing the name of any particular route.
| Route type | Link characteristics | Best for | Keep in mind |
|---|---|---|---|
| IEPL | End-to-end dedicated line that avoids public-internet detours, with low latency and low jitter | Long conversations, streaming output, fixed API exits, long-lived editor connections | Resources are relatively limited; queues are possible at peak times |
| Relay | Connects to a relay node before heading out; the quality of the relay leg decides the overall experience | Everyday web use, video and streaming, several devices online at once | Congestion on the relay leg noticeably degrades the experience |
| Direct | Heads out directly; the path is short but heavily affected by public-internet congestion | Light browsing, short requests, occasional use | Latency and jitter rise noticeably during evening peak hours |
How to Choose by Scenario
If your usage is mainly long conversations and streaming output, favor the dedicated-line type: this scenario is the most sensitive to jitter, and the value of a dedicated line shows up as stability rather than peak speed. If you mainly browse the web and watch video, the relay type is usually enough and behaves more evenly with several devices online at once. If you only look things up occasionally and send a few short requests, direct is sufficient — no need to occupy the tighter route resources.
For region, follow your account region rather than whichever is fastest. As the earlier chapters explained, region consistency matters far more than single-request speed. Once the region is settled, pick a type among the routes in that same region.
This Service's Route Coverage
VPNAY currently offers 120+ countries / 250+ routes, covering major areas including East Asia, Southeast Asia, North America and Europe, supports five platforms — Windows / macOS / iOS / Android / Linux — and places no limit on simultaneous devices. For the full list of regions and route types see Server List; for plans and data rules see Pricing.
Data resets monthly on the day you activated, and if you upgrade mid-cycle the price difference is converted into remaining days. If you are unsure about usage, you can also look at data packs: they last until used up and never expire, which suits usage that fluctuates a lot.
Recommended Order for Choosing Routes
Settle the region first (matching your account region), then the type (by scenario), and only then compare specific routes. Doing it the other way round — picking the route with the nicest name or the fastest-looking number, then bending the region to fit — is the worst-feeling way to use the service.
Bans and Rate Limits: Causes and Prevention
A ban and a rate limit are not the same thing. A rate limit is temporary and recoverable and usually targets request volume in a short window; a ban targets the account itself and is far harder to recover from. Their causes overlap, but the responses are completely different. Work out which one you are facing before deciding what to do.
The Six Most Common Causes
- An exit that jumps around: switching between several regions within a day leaves a string of contradictory sources in the account record.
- Several accounts sharing one exit: many different accounts appearing from one IP in a short window reads as bulk operation.
- High-frequency automated requests: a script calling far faster than a human triggers rate limits, and persistent triggering escalates to account-level action.
- Account details that conflict with the exit region long term: sign-up region, payment region and usage region that never agree.
- An account shared by several people: the same account online from several different exits at once, a pattern clearly different from single-person use.
- Problems at the payment step: the payment method's region conflicts with the account region, or several payment methods get linked to one account in a short window.
Preventive Steps You Can Take
First, give each account one stable exit and fix its region long term. Second, control request frequency: add backoff and caps to programmatic calls instead of hammering rate limits with retries. Third, do not share accounts — if several people need access, each should register separately. Fourth, keep a normal usage rhythm and avoid bursts of activity in a short window. Fifth, keep the payment step consistent with the account region wherever possible.
What these steps have in common is making the account's usage pattern look like one normal person using it. Risk systems aim to spot abnormal patterns, not to spot a particular tool, so steady, continuous, rhythmic use is itself the best prevention.
What This Service Can and Cannot Do
This service provides the network link: a stable exit, a fixed region, unlimited simultaneous devices, and consumer safeguards such as a 30-day money-back guarantee. These solve stability problems at the link level and keep the exit profile continuous. But account-level decisions are made by the third-party platform itself; no network service can interfere with its rules or influence how a given account is judged. Any claim to change a third-party platform's judgment is not worth believing.
If You Have Already Received a Restriction Notice
First stop all automated calls and multi-device logins, switch the exit back to the account region, and wait for the observation period to pass. During that time, do not keep logging in to probe, and do not immediately move to a brand-new region and carry on — that just layers on another conflicting signal.
Troubleshooting: Symptoms, Causes and Fixes
The principle of troubleshooting is outside-in and coarse-to-fine: confirm the link itself is working first, then check whether the client is actually taking over traffic, and only then suspect the account and the platform side. Doing it in the wrong order wastes a lot of time on irrelevant steps.
| Symptom | Possible cause | What to do |
|---|---|---|
| Page will not load or spins forever | Route not in effect, client not capturing traffic | Confirm the client shows connected, then refresh; if it still fails, switch to another route in the same region |
| Page loads but says the region is unsupported | Exit region does not match the account region | Switch back to a route in the account region; do not jump to a third region |
| First token is very slow, later output is fine | The exit takes a long detour | Switch to a dedicated-line route, or pick an exit that is geographically closer |
| Output stops halfway | Link jitter, or the connection recycled by an intermediate device | Switch to a low-jitter route, shorten each output round, and keep the page in the foreground |
| API returns a rate-limit error | Concurrency too high, or too many requests in a short window | Lower concurrency and add exponential backoff with a retry cap |
| Noticeable completion lag in the editor | High-frequency short requests affected by jitter | Switch to a dedicated-line route with a fixed exit, and check whether the connection pool is reusing connections |
| Fine by day, slow at night | Cross-border link congestion during evening peak hours | Switch to a dedicated-line route, or run heavy tasks outside peak hours |
Standard Troubleshooting Flow
- Check the client status: does it show connected, and what region and type is the current route?
- Confirm traffic is really going through the route: visit any page that shows exit information and verify the location matches expectations.
- Classify the problem: a page that will not load at all is a link problem; a page that loads but has limited features is a region-check problem.
- For link problems, change the route type first; for region-check problems, verify region consistency first — do not change both at once.
- When one route misbehaves, switch to another route in the same region and compare; that quickly tells you whether it is an individual route or a broader issue.
- If all of the above is fine and the problem persists, check local factors: browser extensions, system time, and local DNS settings.
A Few Easy-to-Misjudge Cases
A large system clock offset causes certificate validation to fail, yet it looks like the site will not open and is easily mistaken for a route problem. Browser extensions intercepting requests, or local DNS caching an old resolution, produce similar symptoms. What these cases share is that changing routes does nothing, while changing browser or device fixes it. When that happens, check the local environment first instead of fiddling with routes.
One Rule of Thumb
If the same problem disappears after switching to a different type of route in the same region, it is almost certainly a link-level issue; if it persists across routes, browsers and devices, the problem is probably not the link. Sorting problems by this standard saves most of the wasted attempts.
FAQ
Why does the same account behave so differently at different times?
The most common reasons are link congestion changing over time and whether the exit region has been switched. Cross-border links get noticeably more congested in the evening, with latency and jitter rising together; if the region was also changed in the meantime, the account-side risk score shifts as well. When troubleshooting, fix the region first and then look at whether the difference tracks the time of day.
How many devices can use one route at the same time?
VPNAY places no limit on simultaneous devices, and Windows / macOS / iOS / Android / Linux can all log in with the same account. Note that third-party AI tools may have their own device rules for accounts; that has nothing to do with the route, so do not judge the two together.
Do API calls have to use a dedicated line?
Not necessarily, but a dedicated line is less trouble. API calls need a fixed exit and controllable concurrency, and dedicated lines are steadier on both counts. If your calls are low-frequency, the relay type is usually enough; once rate limits or timeouts become frequent, switch to a dedicated-line route with a fixed exit first.
Do I need to stay connected the whole time I use AI tools?
Connect only when you need to reach the corresponding service. That said, switching the connection on and off frequently changes the exit address, so if your account is sensitive to region consistency, keep the same route connected during a continuous working session and avoid switching midway.
What happens when my plan's data runs out?
Monthly subscription data resets each month on your activation day, and upgrading mid-cycle converts the price difference into remaining days. If your usage fluctuates a lot, you can also choose data packs: they last until used up and never expire. For specific tiers see Pricing.
What do I need to sign up?
No email address is required — a username and password are enough to register, and you then log in to the user panel to get the client and subscription link. Payment supports Alipay / WeChat Pay / USDT, and within 30 days of your first payment you can request a full refund, no questions asked.
Fix the Route First, Then Talk About Stability
120+ countries / 250+ routes, unlimited simultaneous devices, anonymous with no logs, a 30-day money-back guarantee, and sign-up with no email address required. Supports Windows / macOS / iOS / Android / Linux.
Further reading: Guides · Server List · Pricing · Netflix Regional Libraries and 4K Bandwidth Compared · All Hands-On Notes