Web servers
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H2O is a fast and secure HTTP/2 server written in C by Kazuho Oku.
Disclaimer: The data used in this report is collected from the current VersionDB release (February 2026) containing a total of 12,727,168 domains. All statistics reflect this dataset and do not claim to represent all websites globally.
H2O 2.2.3 Complementary Technologies
Technologies frequently found with H2O 2.2.3.
Live H2O 2.2.3 Sites
1
Complementary Tech
7
Most Frequent Complementary Tech
Websites Using H2O 2.2.3
An unordered, non-ranked list generated from observed technology data.
| Domain | Server Location | ASN | Crawl Date |
|---|---|---|---|
| peco-japan.com | 🇯🇵 Japan | Amazon.com, Inc. | February 7, 2026 |
Find Your Customers By Their Technologies
12,727,168 domains across 3,651 technologies. Ready for lead generation, market research, and security analysis.
Buy Now — $199.95 USDTop H2O 2.2.3 Identifiers
Who is using H2O 2.2.3 and where.
Countries
Top 5 most detected countries for H2O 2.2.3
ASNs
Top 5 most detected ASNs for H2O 2.2.3
Languages
Top 5 most detected Languages for H2O 2.2.3
TLDs
Top 5 most detected TLDs for H2O 2.2.3