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Websites using Cassandra

1,523 websites detected · Updated Oct 31, 2026

What is Cassandra?

Cassandra is a technology in the Database category. 1,523 websites use Cassandra, detected by Hunter on Oct 31, 2026.

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The websites using Cassandra

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

Domain name Industry
1
google.com
Software Development 87,183 email addresses
2
cloudflare.com
Computer and Network Security 421 email addresses
3
paypal.com
Software Development 18,914 email addresses
4
adobe.com
Software Development 84,026 email addresses
5
microsoft.com
Software Development 34,603 email addresses
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You have 1,523 sites. Now reach the people.

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

  • Anwar J. · Head of Industry Google

    85%

  • Anish P. · Head Of Sales Cloudflare

    84%

  • Sanjana S. · Head of University Recruitment PayPal

    85%

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 Cassandra

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

By industry

Industry Websites
Technology, Information and Media 481
Professional Services 427
Financial Services 167
Manufacturing 104
Administrative and Support Services 55
Retail 46
Entertainment Providers 34
Transportation, Logistics, Supply Chain and Storage 31
Information Technology and Services 26
Government Administration 22
Consumer Services 19
Hospitals and Health Care 18

By country

Country Websites
United States 850
United Kingdom 81
India 74
France 56
Canada 47
Germany 44
Brazil 40
Singapore 23
Spain 19
Netherlands 18
Italy 17
Sweden 17

Cassandra by country

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

Cassandra FAQs

Browse every technology

Hunter detects Cassandra on 1,523 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 Cassandra, 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 Cassandra on most often also run Amazon Web Services, Python and Docker.

Cassandra is one of the Database technologies Hunter tracks. Others it detects widely include MySQL, SQL and Redis.

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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