What powers 
princetonol.com?
Last seen Oct 2026 · 21 technologies across 11 categories
Analytics
Authentication
CDN
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Programming languages
Security
Tag managers
Web frameworks
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
The other 20 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Nov 2026 ccbot added to robots.txt
- Nov 2026 claude-web added to robots.txt
- Nov 2026 claudebot added to robots.txt
- Nov 2026 bytespider added to robots.txt
- Nov 2026 Content Signals changed
- Nov 2026 amazonbot added to robots.txt
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 53% desktop
- 47% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.77 / 10 · ranked #269,287 of all domains
210 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- CDN: Cloudflare
- Weight: 9.3 MB · 92 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Apr 1995 (31 years) via Network Solutions, LLC, renews Apr 2027
- Hosted on Cloudflare (104.21.89.61)
- Email: polclients.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 506,643, 5 hosts
- Verified with: Google
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 →
Report an incorrect detection
Recent changes
- dropped GoDaddy Sep 2026
- dropped IIS Sep 2026
- dropped Windows Server Sep 2026
- detected Cloudflare Browser Insights Aug 2026
- detected HTTP/3 Aug 2026