What powers openplaques.org?
Last seen Oct 2026 · 14 technologies across 11 categories
Analytics
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
UI frameworks
Web frameworks
Webmail
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.72 / 10 · ranked #297,997 of all domains
124 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- Weight: 12.2 MB · 107 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Open Plaques
- Founded: 2009
From Wikidata (CC0).
Infrastructure
- Registered Apr 2009 (17 years) via Tucows Domains Inc., renews Apr 2029
- Hosted on Amazon Web Services (3.33.249.164)
- DNS: DNSimple
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 463,350, 3 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
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Recent changes
- detected Prism Aug 2026
- dropped Unpkg Mar 2026
- dropped jQuery Feb 2026
- dropped jQuery UI Feb 2026
- dropped jsDelivr Feb 2026
- dropped Leaflet Feb 2026
- dropped Livefyre Feb 2026
- dropped Mapbox GL JS Feb 2026
- dropped Mapbox.js Feb 2026
- dropped Popper Feb 2026
- detected AOS Jan 2026
- detected Bootstrap Jan 2026
- detected Bootstrap Icons Jan 2026
- detected Google Font API Jan 2026
- detected HSTS Jan 2026
- detected Stimulus Jan 2026
- detected Swiper Jan 2026
- detected Turbo Jan 2026
- detected Unpkg Jan 2026