What powers perl101.org?
Last seen Aug 2026 · 6 technologies across 5 categories
Analytics
CDN
JavaScript libraries
Miscellaneous
UI frameworks
AI Crawlers
Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
The other 25 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
AI Crawlers
8 of 33 AI crawlers blocked
Standards: Content Signals
Open Page Rank
2.01 / 10 · ranked #3,556,171 of all domains
13 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.73.117, IPv6)
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 6,721,940, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped jQuery CDN Jul 2026
- dropped Nginx Jul 2026