What powers calvertlibrary.info?
Last seen Oct 2026 · 24 technologies across 15 categories
Analytics
Caching
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Video players
Web servers
Webmail
Widgets
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
AI Crawlers
No AI crawlers blocked
Audience
- 54% phone
- 46% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.19 / 10 · ranked #1,274,830 of all domains
27 referring domains · OpenPageRank
Search traffic
3,200 est. monthly organic visits (US)
437 keywords in Google's top 30
Core Web Vitals
| LCP | 2.5 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English (United States)
- Weight: 12.7 MB · 194 requests
- WordPress theme: avada (child: calvert) · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Calvert Library
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on EPFL-AS (64.26.86.242)
- DNS: calvertlibrary.local
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 6,718,124, 3 hosts
- Verified with: Apple Business
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- dropped Bootstrap Sep 2026
- dropped Amazon ALB May 2026
- dropped Amazon Web Services May 2026
- dropped Cloudinary May 2026
- dropped GTranslate May 2026
- dropped jsDelivr May 2026
- detected Twitter Emoji (Twemoji) Dec 2025