What powers 
hydrosheds.org?
Last seen Sep 2026 · 16 technologies across 9 categories
Analytics
CDN
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Page builders
Security
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| hydrosheds | #1 | 79 |
| river database | #2 | 18 |
| usgs explorer | #44 | 17 |
| hydrological database | #2 | 15 |
| hydro lake | #1 | 15 |
| subbasin | #4 | 14 |
| glwd | #6 | 12 |
| hydrorivers | #1 | 12 |
| basin map | #4 | 11 |
| sub basin | #5 | 10 |
| world map of wetlands | #5 | 8 |
| free-flowing rivers | #3 | 7 |
| wetlands on world map | #6 | 6 |
| map of wetlands in the world | #6 | 6 |
| wetlands world map | #6 | 5 |
| number of rivers in the world | #4 | 5 |
| free flowing river | #4 | 5 |
| river direction | #3 | 4 |
| rivers of the world | #42 | 3 |
| hydrologic data | #6 | 3 |
| catchment meaning | #58 | 2 |
| waterfalls database | #9 | 2 |
| rivers of information | #9 | 2 |
| main rivers in europe | #43 | 2 |
| map of basins | #10 | 2 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 81% desktop
- 19% phone
India
Colombia
Germany
Japan
Canada
Hungary
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.51 / 10 · ranked #157,245 of all domains
143 referring domains · OpenPageRank
Search traffic
300 est. monthly organic visits (US)
324 keywords in Google's top 30
Core Web Vitals
| LCP | 1.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.7 MB · 42 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Registered Jan 2008 (18 years) via NameCheap, Inc., renews Jan 2027
- Hosted on Cloudflare (198.202.211.1, IPv6)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), DMARC reject
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 40,828, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.hydrosheds.org | 12 |
| hydrosheds.org | 9 |
| newsletter.hydrosheds.org | 5 |
Full technology history →
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Recent changes
- dropped reCAPTCHA Aug 2026