What powers 
esr.ie?
Last seen Aug 2026 · 12 technologies across 10 categories
CDN
jsDelivr
since Jul 2026
DMS
JavaScript graphics
JavaScript libraries
Miscellaneous
Popper
since Jul 2022
Operating systems
Ubuntu
since Feb 2020
Programming languages
PHP
since Feb 2020
Security
HSTS
since Feb 2024
UI frameworks
Bootstrap
since Nov 2021
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Ireland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.71 / 10 · ranked #304,280 of all domains
94 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 1.1 MB · 25 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GOSSAMERTHREADS (208.70.247.81)
- DNS: 101domain.com
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 548,446, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| esr.ie | 9 |
| www.esr.ie | 9 |