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Websites using reCAPTCHA

293,077 websites detected · Updated Oct 4, 2026

What is reCAPTCHA?

reCAPTCHA is a technology in the Authentication Services category. Hunter detects it on 293,077 websites.

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The websites using reCAPTCHA

A sample of the websites Hunter detects reCAPTCHA on, ordered by web popularity.

Domain name Industry
1
google.com
Software Development 83,165 email addresses
2
weebly.com
Technology, Information and Internet 951 email addresses
3
medium.com
Internet Publishing 125 email addresses
4
website.ws
Technology, Information and Internet 436 email addresses
5
washingtonpost.com
Newspaper Publishing 929 email addresses
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You have 293,077 sites. Now reach the people.

Hunter already holds email addresses at all 50 websites listed above.

  • Jennifer M. · CPO Google

    85%

  • David E. · Musical Director Weebly

    99%

  • Greg F. · Mayor Medium

    99%

Real people at the websites listed above. Only the part before the @ is hidden here — the company domain is the real one.

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Who uses reCAPTCHA

Websites running reCAPTCHA, counted by industry and by country. Only the largest groups are shown.

By industry

Industry Websites
Professional Services 34,719
Technology, Information and Media 17,964
Manufacturing 15,044
Consumer Services 11,715
Entertainment Providers 8,880
Hospitals and Health Care 8,612
Administrative and Support Services 6,832
Accommodation Services 6,305
Education 6,268
Financial Services 6,132
Construction 5,431
Retail 5,419

By country

Country Websites
United States of America 67,866
United Kingdom of Great Britain and Northern Ireland 17,149
France 14,303
Canada 10,852
Netherlands 9,944
Spain 9,253
Germany 7,621
Australia 5,914
Poland 5,685
Italy 4,107
India 3,510
Brazil 3,399

reCAPTCHA by country

The countries where we detected enough reCAPTCHA websites to rank them.

reCAPTCHA FAQs

Browse every technology

Hunter detects reCAPTCHA on 293,077 websites. The figure comes from Hunter's own crawl of company websites and is rebuilt every night, so it moves as sites adopt and drop the technology.

The table on this page is a sample of the websites running reCAPTCHA, ordered by web popularity, with the industries they are in and how many email addresses Hunter holds for each. Create a free account to search any of them and see the addresses.

The websites Hunter detects reCAPTCHA on most often also run jQuery, PHP and MySQL.

reCAPTCHA is one of the Authentication Services technologies Hunter tracks. Others it detects widely include Gravatar, OpenSSL and Google Sign-in.

Yes — that is what Hunter is for. The last column of the table shows how many email addresses Hunter already holds for a website, where it has found any. Sign up to see the addresses themselves, with the name and job title of the person behind each one.
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