What powers slugcat.systems?
Last seen Jul 2026 · 10 technologies across 7 categories
CDN
JavaScript frameworks
JavaScript libraries
Miscellaneous
Security
Static site generator
Web servers
AI Crawlers
Blocks 17 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- img2dataset Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- PerplexityBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 16 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 imagesiftbot added to robots.txt
- Sep 2026 chatgpt-user added to robots.txt
- Sep 2026 claudebot added to robots.txt
- Sep 2026 claude-web added to robots.txt
- Sep 2026 cohere-ai added to robots.txt
- Sep 2026 amazonbot added to robots.txt
AI Crawlers
17 of 33 AI crawlers blocked
Audience
- 50% phone
- 50% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.10 / 10 · ranked #3,333,761 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- Weight: 0.0 MB · 4 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on TELENET-AS (84.194.90.169, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 2,137,902, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sharkey.slugcat.systems | 8 |
| slugcat.systems | 6 |