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Websites using reCAPTCHA

292,877 websites detected · Updated Oct 9, 2026

What is reCAPTCHA?

reCAPTCHA is a technology in the Authentication Services category. 292,877 websites use reCAPTCHA, detected by Hunter on Oct 9, 2026.

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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 84,068 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 437 email addresses
5
washingtonpost.com
Newspaper Publishing 910 email addresses
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You have 292,877 sites. Now reach the people.

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

  • Chris M. · Director of Product Management 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 34,747
Technology, Information and Media 17,951
Manufacturing 15,053
Consumer Services 11,766
Entertainment Providers 8,884
Hospitals and Health Care 8,618
Administrative and Support Services 6,846
Accommodation Services 6,309
Education 6,296
Financial Services 6,134
Construction 5,437
Retail 5,418

By country

Country Websites
United States of America 67,817
United Kingdom of Great Britain and Northern Ireland 17,116
France 14,288
Canada 10,849
Netherlands 9,947
Spain 9,246
Germany 7,652
Australia 5,917
Poland 5,680
Italy 4,109
India 3,520
Brazil 3,393

reCAPTCHA by country

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

reCAPTCHA FAQs

Browse every technology

Hunter detects reCAPTCHA on 292,877 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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