What powers esr.org?
Last seen Aug 2026 · 28 technologies across 18 categories
Analytics
Google Analytics
since Jan 2026
CDN
Amazon S3
since Jan 2026
CMS
Databases
MySQL
since Jul 2022
MailChimp
since Jan 2026
Font scripts
Google Font API
since Jul 2022
Twitter Emoji (Twemoji)
since Jul 2022
Hosting
IONOS
since Aug 2022
JavaScript libraries
Swiper
since Jan 2026
Miscellaneous
PaaS
Amazon Web Services
since Jan 2026
Page builders
WordPress Block Editor
since Dec 2024
Performance
Priority Hints
since Jan 2026
Programming languages
PHP
since Jul 2022
Rich text editors
Web servers
Apache HTTP Server
since Jul 2022
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
WordPress themes
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Open Page Rank
4.72 / 10 · ranked #296,352 of all domains
85 referring domains · OpenPageRank
Organisation
- Earth and Space Research
- Founded: 1995
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on IONOS (74.208.236.157)
- DNS: IONOS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail)
- SSL: Sectigo, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 458,960, 9 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Bootstrap Apr 2026
- dropped Lightbox Apr 2026
- dropped Select2 Apr 2026
- dropped SiteOrigin Page Builder Apr 2026