What powers hdfgroup.org?
Last seen Jun 2026 · 54 technologies across 29 categories
Analytics
Caching
CDN
CMS
CRM
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Message boards
Miscellaneous
Operating systems
PaaS
Page builders
Payment processors
Performance
Programming languages
Security
Static site generator
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
Wikis
WordPress plugins
WordPress themes
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| hdf5 file | #1 | 180 |
| hdf viewer | #1 | 160 |
| hdf5 | #4 | 160 |
| hdf5 format | #1 | 120 |
| hdf5 file viewer | #2 | 120 |
| hdfview | #2 | 59 |
| hdf viewer | #3 | 53 |
| hsds | #2 | 42 |
| install hdf5 | #1 | 33 |
| hdf5 download | #1 | 21 |
| what is hdf5 | #2 | 15 |
| hdf data format | #2 | 11 |
| hdf5 database | #1 | 9 |
| hdf4 | #1 | 9 |
| hdf5 reader | #2 | 8 |
| libhdf5 | #3 | 5 |
| hfd5 | #7 | 4 |
| what is hdf | #12 | 3 |
| rust hdf5 | #3 | 3 |
| python h5py | #6 | 3 |
| mike folk | #3 | 3 |
| mike folk | #3 | 3 |
| h5py compression | #3 | 3 |
| hdf5 viewer | #14 | 3 |
| hdf5 download | #5 | 3 |
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.
Audience
- 58% desktop
- 42% phone
United States
India
Japan
Germany
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.31 / 10 · ranked #28,172 of all domains
731 referring domains · OpenPageRank
Search traffic
1,100 est. monthly organic visits (US)
129 keywords in Google's top 30
Core Web Vitals
| LCP | 3.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 3.0 MB · 57 requests
- WordPress theme: astra (child: astra-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.hdfgroup.org | 25 |
| forum.hdfgroup.org | 13 |
| portal.hdfgroup.org | 12 |
| support.hdfgroup.org | 12 |
| confluence.hdfgroup.org | 10 |
| dev.hdfgroup.org | 10 |
| docs.hdfgroup.org | 6 |
Full technology history →
Report an incorrect detection