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Websites using Spark

4,507 websites detected · Updated Nov 13, 2026

What is Spark?

Spark is a technology in the Analytics category. 4,507 websites use Spark, detected by Hunter on Nov 13, 2026.

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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 87,881 email addresses
2
cloudflare.com
Computer and Network Security 436 email addresses
3
paypal.com
Software Development 19,121 email addresses
4
adobe.com
Software Development 85,716 email addresses
5
medium.com
Internet Publishing 129 email addresses
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You have 4,507 sites. Now reach the people.

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

  • Anwar J. · Head of Industry 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 1,244
Professional Services 1,097
Financial Services 597
Manufacturing 360
Hospitals and Health Care 151
Administrative and Support Services 150
Retail 147
Transportation, Logistics, Supply Chain and Storage 93
Entertainment Providers 92
Utilities 77
Government Administration 76
Information Technology and Services 69

By country

Country Websites
United States 2,330
United Kingdom 308
Canada 160
France 149
Brazil 146
Germany 140
India 118
Netherlands 90
Spain 78
Australia 73
Switzerland 61
Singapore 52

Spark by country

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

Hunter detects Spark on 4,507 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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