What is Google reCAPTCHA?

Security

Google reCAPTCHA is a security or bot-protection service: CAPTCHA service by Google. Tech Stack Detector identifies Google reCAPTCHA on any website by analysing the HTML source.

Google reCAPTCHA is a security or bot-protection service (Security), detected on 21 websites in our index. See websites using Google reCAPTCHA ↓

CategorySecurity
Official sitegoogle.com
Detection signals1 signal
In our index21 websites

How Tech Stack Detector detects Google reCAPTCHA

Google reCAPTCHA is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.

  • Html PatternreCAPTCHA widget or script

Websites using Google reCAPTCHA

Recently scanned websites where we detected Google reCAPTCHA. Open one to see its full technology stack.

simulatorradio.com7 technologies · 1 d ago www.heroku.com12 technologies · 2 d ago tinkercad.com6 technologies · 4 d ago bxpress.pt13 technologies · 4 d ago www.surge.cloud6 technologies · 5 d ago liliya.be10 technologies · 6 d ago thefastsmm.in7 technologies · 7 d ago www.docker.com15 technologies · 7 d ago tryout.gunadarma.ac.id12 technologies · 8 d ago www.techcrunch.com8 technologies · 8 d ago techcrunch.com8 technologies · 8 d ago www.hostingraja.in10 technologies · 8 d ago www.bestbuy.com8 technologies · 8 d ago globo.com10 technologies · 8 d ago jang.com.pk15 technologies · 8 d ago webflow.com16 technologies · 8 d ago www.promessedefleurs.com10 technologies · 9 d ago www.webflow.com16 technologies · 9 d ago

View all websites using Google reCAPTCHA

Often used with Google reCAPTCHA

Technologies most frequently detected alongside Google reCAPTCHA across scanned websites.

BootstrapUI Library13 sitesPHPLanguage13 sitesGoogle Tag ManagerAnalytics11 sitesjQueryUI Library11 sitesGoogle FontsFont11 sitesCloudflareCDN10 sitesMySQL / MariaDBDatabase10 sitesWordPressCMS9 sites

Alternatives to Google reCAPTCHA

Other Security technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.

OneTrustSecurity21 sitesCookiebotSecurity7 sitesCloudflare TurnstileSecurity5 siteshCaptchaSecurity1 siteImperva (Incapsula)SecuritySucuriSecurityWordfenceSecurity

Compare Google reCAPTCHA

Side-by-side comparisons of Google reCAPTCHA with other Security technologies.

Google reCAPTCHA vs OneTrust Google reCAPTCHA vs Cookiebot Google reCAPTCHA vs Cloudflare Turnstile Google reCAPTCHA vs hCaptcha Google reCAPTCHA vs Imperva (Incapsula)

Popular technologies

The technologies most often detected across all websites scanned on Tech Stack Detector.

CloudflareCDN247 sitesGoogle FontsFont215 sitesTailwind CSSUI Library170 sitesReactFramework165 sitesProgressive Web AppOther147 sitesPHPLanguage139 sitesNode.jsLanguage136 sitesNext.jsFramework124 sitesBootstrapUI Library119 sitesGoogle WorkspaceOther110 sites

Frequently asked questions

What is Google reCAPTCHA?

Google reCAPTCHA is a security or bot-protection service: CAPTCHA service by Google. Tech Stack Detector identifies Google reCAPTCHA on any website by analysing the HTML source. Its official website is https://google.com/recaptcha.

How can I tell if a website uses Google reCAPTCHA?

Enter any URL into Tech Stack Detector and it reports whether Google reCAPTCHA is present, with a confidence score and the exact evidence it matched. Detection is based on the HTML source. No login or crawling of the site is required.

How many websites use Google reCAPTCHA?

Google reCAPTCHA has been detected on 21 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.

What are some alternatives to Google reCAPTCHA?

Other Security technologies Tech Stack Detector detects include OneTrust, Cookiebot, Cloudflare Turnstile, hCaptcha, Imperva (Incapsula) and Sucuri. You can compare any of them side by side with Google reCAPTCHA.

Data last updated October 20, 2026 · based on 618 recently scanned websites.