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Websites using Spark

4,476 websites detected · Updated Oct 4, 2026

What is Spark?

Spark is a technology in the Analytics category. Hunter detects it on 4,476 websites.

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The websites using Spark

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

Domain name Industry
1
google.com
Software Development 83,165 email addresses
2
cloudflare.com
Computer and Network Security 389 email addresses
3
paypal.com
Software Development 17,752 email addresses
4
adobe.com
Software Development 78,832 email addresses
5
medium.com
Internet Publishing 125 email addresses
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You have 4,476 sites. Now reach the people.

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

  • Jennifer M. · CPO Google

    85%

  • Amanda S. · Director Solutions 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 Spark

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

By industry

Industry Websites
Technology, Information and Media 1,217
Professional Services 1,090
Financial Services 604
Manufacturing 365
Hospitals and Health Care 147
Administrative and Support Services 147
Retail 146
Transportation, Logistics, Supply Chain and Storage 96
Entertainment Providers 90
Utilities 77
Information Technology and Services 75
Government Administration 71

By country

Country Websites
United States of America 2,318
United Kingdom of Great Britain and Northern Ireland 308
Canada 159
France 149
Germany 146
Brazil 137
India 114
Netherlands 88
Spain 75
Australia 71
Switzerland 62
Singapore 52

Spark by country

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

Hunter detects Spark on 4,476 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 Spark, 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 Spark on most often also run Python, SQL and Amazon Web Services.

Spark is one of the Analytics technologies Hunter tracks. Others it detects widely include Google Analytics, Site Kit and Cloudflare Browser Insights.

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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