Websites Powered by H2O
241 websites tracked using H2O (Web servers) · github.com
H2O is a web server that delivers the site's pages. Its official site is github.com. PoweredBy tracks the websites that use H2O across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the web servers ecosystem.
Usage trend
50
100
150
200
Nov 2022
Nov 2023
Oct 2024
Oct 2025
Sep 2026
Domains observed using H2O in each month's HTTP Archive crawl,
Nov 2022 to Sep 2026 · peak 168 in Nov 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 50 ms
CLS 0
TTFB 600 ms
Median site among 94 H2O sites with Chrome UX data, p75 values, Sep 2026.
Top countries
New Zealand
50
Japan
29
Germany
9
India
5
United States
5
Austria
4
Spain
3
France
3
Sites using H2O by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Blogs and publishing | <0.01% | 1 |
| Arts and entertainment | <0.01% | 1 |
Share of each industry's websites with a detected stack that use H2O; industries come from what sites declare in their own structured data.
Websites using H2O
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | solarserver.de | 6.84/10 | 42 | 126 | Nov 2022 |
| 2 | rgbstock.com | 6.37/10 | 7 | 81 | Nov 2022 |
| 3 | greenjobs.de | 5.32/10 | 21 | 49 | Nov 2022 |
| 4 | caremad.io | 4.76/10 | - | - | Dec 2022 |
| 5 | examp1e.net | 4.70/10 | - | - | Apr 2023 |
| 6 | peco-japan.com | 4.11/10 | - | - | Nov 2022 |
| 7 | ntecs.de | 4.04/10 | - | - | Jul 2026 |
| 8 | eejobs.de | 4.00/10 | - | - | Nov 2022 |
| 9 | yetigame.jp | 3.89/10 | - | - | Nov 2022 |
| 10 | lowreal.net | 3.69/10 | - | - | Nov 2022 |
| 11 | suma.ac.jp | 3.64/10 | - | - | Nov 2022 |
| 12 | nursta.jp | 3.05/10 | - | - | Dec 2022 |
| 13 | krats.se | 2.96/10 | - | - | Nov 2022 |
| 14 | rgbstock.com.br | 2.80/10 | - | - | Nov 2022 |
| 15 | juusta.jp | 2.69/10 | - | - | Nov 2022 |
| 16 | dh-study.jp | 2.66/10 | - | - | Mar 2023 |
| 17 | sumashuku.jp | 2.60/10 | - | - | Nov 2022 |
| 18 | pianocenter.jp | 2.54/10 | - | - | Nov 2022 |
| 19 | mourjan.com | 2.00/10 | - | - | Apr 2023 |
| 20 | nishida-museum.com | 1.72/10 | - | - | Nov 2022 |
| 21 | bakuhouse.jp | 1.63/10 | - | - | Nov 2022 |
| 22 | growth-and.com | 1.53/10 | - | - | Nov 2022 |
| 23 | velocompany.de | 1.52/10 | - | - | Nov 2022 |
| 24 | hari-study.com | 1.40/10 | - | - | Dec 2023 |
| 25 | westmerebutchery.co.nz | 1.40/10 | - | - | Nov 2022 |
| 26 | le-premier.jp | 1.39/10 | - | - | Apr 2023 |
| 27 | hikerswool.co.nz | 1.36/10 | - | - | Nov 2022 |
| 28 | ngnl.org | 1.30/10 | - | - | Nov 2022 |
| 29 | incurvy.de | 1.29/10 | - | - | Nov 2022 |
| 30 | peterjacksonplumbing.co.nz | 1.13/10 | - | - | Nov 2022 |
| 31 | greenjobs.at | 1.12/10 | - | - | Jan 2025 |
| 32 | informphysio.co.nz | 1.10/10 | - | - | Nov 2022 |
| 33 | paperquip.co.nz | 1.02/10 | - | - | Feb 2023 |
| 34 | retirekapiti.co.nz | 0.95/10 | - | - | Nov 2022 |
| 35 | onlinecommunications.co.nz | 0.94/10 | - | - | Nov 2022 |
| 36 | berhamporelocks.co.nz | 0.90/10 | 14 | 10 | Dec 2022 |
| 37 | raumatisands.co.nz | 0.88/10 | - | - | Nov 2022 |
| 38 | jennybecklaw.co.nz | 0.81/10 | - | - | Nov 2022 |
| 39 | koaki.info | 0.78/10 | - | - | Nov 2022 |
| 40 | zekisbread.co.nz | 0.77/10 | - | - | Nov 2022 |
| 41 | courtenayhearing.co.nz | 0.75/10 | - | - | Nov 2022 |
| 42 | wellingtonscrapmetals.co.nz | 0.72/10 | - | - | Nov 2022 |
| 43 | bkshamiltonmotel.co.nz | 0.71/10 | - | - | Nov 2022 |
| 44 | chaosplant.tech | 0.70/10 | - | - | Jul 2023 |
| 45 | supoharazero.org | 0.66/10 | - | - | Apr 2024 |
| 46 | nzspringworks.co.nz | 0.66/10 | - | - | Nov 2022 |
| 47 | pinewoods.co.nz | 0.65/10 | - | - | Nov 2025 |
| 48 | coastsecurity.co.nz | 0.64/10 | - | - | Apr 2024 |
| 49 | otagopackaging.co.nz | 0.64/10 | - | - | Nov 2022 |
| 50 | wellingtonautomotive.co.nz | 0.63/10 | - | - | Nov 2022 |
| 51 | delaneymitsubishi.co.nz | 0.60/10 | - | - | Jul 2024 |
| 52 | coolmoves.co.nz | 0.59/10 | - | - | Nov 2022 |
| 53 | henry-jr.de | 0.48/10 | - | - | Nov 2022 |
| 54 | theofficersmess.co.nz | 0.46/10 | - | - | Nov 2022 |
| 55 | msfibreglass.co.nz | 0.46/10 | - | - | Nov 2022 |
| 56 | shoreautomotive.co.nz | 0.45/10 | - | - | Dec 2022 |
| 57 | northcityskipbins.co.nz | 0.45/10 | - | - | Nov 2022 |
| 58 | simplysecurity.co.nz | 0.45/10 | - | - | Nov 2022 |
| 59 | animin.jp | 0.45/10 | - | - | Apr 2026 |
| 60 | essentialair.co.nz | 0.44/10 | - | - | Jun 2025 |
| 61 | dunedinurgentdoctors.co.nz | 0.44/10 | - | - | Nov 2022 |
| 62 | loddance.co.nz | 0.43/10 | - | - | Nov 2022 |
| 63 | h2olabs.co.uk | 0.42/10 | - | - | Apr 2026 |
| 64 | nanking.co.nz | 0.42/10 | - | - | Nov 2022 |
| 65 | tknz.co.nz | 0.41/10 | - | - | Nov 2022 |
| 66 | centrum-medicus.sk | 0.39/10 | - | - | Jul 2026 |
| 67 | kents.info | 0.33/10 | - | - | Nov 2022 |
| 68 | eastcoastpackaging.co.nz | 0.29/10 | - | - | Nov 2022 |
| 69 | mysplash.co.nz | 0.29/10 | - | - | Nov 2022 |
| 70 | abbeysigns.co.nz | 0.28/10 | - | 2 | Nov 2022 |
| 71 | cartagena-hotels-colombia.com | 0.28/10 | - | - | Nov 2025 |
| 72 | cccycles.co.nz | 0.27/10 | - | - | Nov 2022 |
| 73 | avalondental.co.nz | 0.27/10 | - | - | Nov 2022 |
| 74 | kapitilaw.co.nz | 0.26/10 | - | - | Jan 2023 |
| 75 | jaderentals.co.nz | 0.25/10 | - | - | Nov 2022 |
| 76 | npl.nz | 0.25/10 | - | - | Nov 2022 |
| 77 | safa.co.nz | 0.25/10 | - | - | Nov 2022 |
| 78 | fleettech.co.nz | 0.25/10 | - | - | Mar 2026 |
| 79 | cartagena-hotels.org | 0.23/10 | - | - | Mar 2026 |
| 80 | greedy-ai.com | 0.10/10 | - | - | Jun 2026 |
| 81 | melashops.com | 0.10/10 | - | - | May 2023 |
| 82 | ot-study.com | 0.10/10 | - | - | Nov 2024 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).