Why am I getting so many CAPTCHAs?

Most people see a CAPTCHA now and then. If you see them on every second site, or the same one keeps coming back after you solve it, something about your connection or browser is making these systems unsure about you. The usual causes fit on one page, and most of them take a few minutes to test.

How do CAPTCHA systems decide who gets a challenge?

They score you silently first and only show a puzzle when the score isn't good enough. hCaptcha describes its approach as "passive detection and challenge escalation," built on "browser, device, network, and behavior signals." Google's reCAPTCHA v3 returns a score where "1.0 is very likely a good interaction, 0.0 is very likely a bot," and the website chooses what to do with it, starting from a suggested threshold of 0.5.

Two things follow from that. You get more challenges when one of those signal groups looks off, and the same browser can sail through one site and get stuck on another, because each site sets its own cut-off.

What causes so many CAPTCHAs?

These eight causes come up again and again in the help pages of sites and CAPTCHA providers. The first four are about your IP address; the rest are about your browser, device and habits.

1. You're on a VPN, proxy or Tor

Shared exits are the classic cause. The Tor Project's explanation: "Thousands of users around the world may be using the same relay IP address at the same time," and websites read that as unusual activity. Commercial VPN servers work the same way on a smaller scale. Patreon's help centre lists using a proxy among its reasons for repeated CAPTCHAs, and says a VPN can make reCAPTCHA "challenge the login."

Disconnect the VPN or proxy and reload; if the challenges stop, that was it. On Tor, the Tor Project suggests "New Circuit for this Site" to get a different exit, or waiting, since these warnings "usually clear up when traffic levels at a relay return to normal."

2. Your IP address is shared with many strangers

Carrier-grade NAT puts many mobile and broadband customers behind one public IPv4 address, and every site sees them as a single visitor. Cloudflare's own figures show these shared addresses hit rate limits roughly three times as often as others, despite carrying mostly human traffic. iCloud Private Relay has a similar effect, since Apple says a relay address "may be shared among more than one Private Relay user in the same area."

Challenges on mobile data but not on home Wi-Fi, or the other way round, mean the network is the difference. You can check for CGNAT in a couple of minutes, and there's a separate page on Private Relay and blocked sites.

3. Your address was recently used for abuse

ISPs reuse addresses. Patreon names this first on its list: your ISP may have given you "an IP address that was previously used by hackers within the past few weeks," and the site's firewall now mistakes you for them. Its suggested fix is to restart your router to get a new address, which works when your ISP hands out a fresh one on reconnect.

4. Something on your network is sending automated traffic

Everything from your home leaves through the same address, so one noisy device affects everyone. Patreon lists both "someone else on your home network is using bots or scripts" and, more rarely, an infected computer attacking other sites without your knowledge. Home connections can also be drafted into residential proxy networks, the FBI said in 2026, through bundled app SDKs, free VPNs, "passive income" bandwidth apps and compromised gadgets such as TV streaming boxes, after which strangers' traffic leaves from your IP.

Suspect this when every device at home gets CAPTCHAs but the same phone on mobile data doesn't. Check for bandwidth-sharing apps and unfamiliar streaming boxes, and run a malware scan. Our article on high IP fraud scores goes through the clean-up in more detail.

5. Your browser blocks what the CAPTCHA needs

CAPTCHA scripts need JavaScript and cookies, and privacy extensions change exactly the things they measure. Wise, which uses Cloudflare's Turnstile, tells users to enable cookies, enable JavaScript and disable all browser extensions when a challenge won't pass. Patreon says tools "like NoScript, Adblocker, and security add-ons" make a browser "behave differently than a regular browser." Google's own documentation notes that reCAPTCHA "works best when it has the most context about interactions with your site," which is the context blockers remove.

A private window with extensions off is the quick test. If the site behaves there, turn extensions back on one at a time until the CAPTCHAs return; you can usually keep the blocker and allow the one site.

6. Your browser is old or unusual

Challenge systems are tested against current mainstream browsers. Wise's first troubleshooting step is to use a browser compatible with Turnstile and to update it to the latest version, and it notes that Turnstile supports "all major browsers, except Internet Explorer." If you use a niche browser or one that's several versions behind, test the site in an up-to-date mainstream browser before anything else.

7. You're doing things fast or in bulk

Behaviour is one of the signal groups. Many searches in quick succession, hammering refresh on a ticket or stock page, or several failed logins in a row all look like automation. The Tor Project lists "many automated requests or logins from a single IP address" as what sets these systems off. Slow down, and stop retrying a failed login straight away.

8. Your device can't vouch for you automatically

Some platforms can prove you're a real user without a puzzle. On Apple devices this is Automatic Verification, built on Private Access Tokens: if you're signed in to your Apple Account, it "privately authenticates you to participating apps and websites, so that you don't have to complete a CAPTCHA." It's on by default, but you lose it if you're signed out, on outdated software, or on a site that doesn't support it. Check it under Settings > [your name] > Sign-In & Security > Automatic Verification.

Is it Cloudflare or Google showing the CAPTCHAs?

Look at the challenge page. Two cases are common enough to have their own guides. A full-page "verify you are human" check, or a "you have been blocked" message, is usually Cloudflare: see why your IP is blocked by Cloudflare. If Google Search says it has detected "unusual traffic from your computer network," see Google's unusual traffic page explained. The causes overlap with the list above, but each has its own fixes.

How do I stop getting so many CAPTCHAs?

Work from the cheapest test to the most effort, and stop when the challenges stop:

1. Turn off any VPN, proxy, Private Relay or Tor and reload. Wise and Patreon both list this.
2. Open a private window with extensions disabled. If it works, re-enable extensions one by one to find the culprit.
3. Allow cookies and JavaScript for the site, and update your browser.
4. Restart your router to try for a new IP address.
5. Switch networks to compare, for example mobile data against Wi-Fi. Wise suggests trying from a different network when nothing else works.
6. Check your devices for bandwidth-sharing apps, unknown TV boxes and malware.
7. On an iPhone, iPad or Mac, confirm you're signed in to your Apple Account, your software is current and Automatic Verification is on.
8. If it's only one site, contact its support. Only the site can loosen its own threshold for your account.

Some causes you can't fix. A shared carrier address stays shared, and Tor exits will always be busy. As the Tor Project puts it, most large websites "are not specifically trying to block Tor - their automated abuse detection systems simply can't tell Tor traffic apart from suspicious traffic." In those cases the realistic options are a different network or a different site.

How can I check whether my IP address is the problem?

Run it through an IP checker that explains its answer. The lookup on our home page shows whether your IP reads as a VPN, proxy, Tor exit, Private Relay or datacenter address, and which signals matched. A clean result with CAPTCHAs on every network points back at your browser, extensions or device rather than the address.