What powers nassaulibraries.org?
Last seen Aug 2026 · 15 technologies across 10 categories
Analytics
CDN
Cookie compliance
Font scripts
JavaScript frameworks
JavaScript libraries
Programming languages
RUM
Security
UI frameworks
AI Crawlers
Blocks 32 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- AI2Bot Blocked
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- img2dataset Blocked
- meta-externalagent Blocked
- PanguBot Blocked
- SBIntuitionsBot Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- Applebot Blocked
- Claude-SearchBot Blocked
- DuckAssistBot Blocked
- OAI-SearchBot Blocked
- PerplexityBot Blocked
- PetalBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
- Claude-User Blocked
- GoogleAgent-Mariner Blocked
- meta-externalfetcher Blocked
- MistralAI-User Blocked
- Perplexity-User Blocked
The other 1 AI crawler we track is not mentioned and only inherits the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
32 of 33 AI crawlers blocked
Audience
- 56% phone
- 44% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.66 / 10 · ranked #5,226,777 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.9 s |
| INP | 125 ms |
| CLS | 0.2 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 8.1 MB · 77 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.8.24)
- Email: no MX record returned
- SSL: Amazon Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 3,734,539, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Font API Jul 2026
- detected Datadog Nov 2025