What powers seo-theory.com?
Last seen Mar 2026 · 19 technologies across 12 categories
Analytics
Matomo Analytics
since May 2024
CMS
Databases
MySQL
since Aug 2018
Font Scripts
Font Awesome
since Apr 2016
Twitter Emoji (Twemoji)
since Aug 2018
JavaScript Frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Aug 2018
Video Players
YouTube
since Jan 2016
Web Servers
Apache HTTP Server
since Jan 2016
WordPress plugins
Jetpack
since Feb 2022
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
Training crawlers
- CCBot Blocked
- Google-CloudVertexBot Blocked
- GoogleOther Blocked
- Google-Extended Restricted
- GPTBot Restricted
Search and AI assistants
- PetalBot Blocked
- YouBot Blocked
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- GoogleAgent-Mariner Blocked
- ChatGPT-User Restricted
- Claude-User Restricted
- Perplexity-User Restricted
The other 19 AI crawlers we track are not mentioned and are blocked by the catch-all rule (User-agent: *).
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Open Page Rank
4.69 / 10 · ranked #333,309 of all domains
158 referring domains · OpenPageRank
Page
- Language: English (United States)
- Weight: 1.7 MB · 60 requests
- WordPress theme: minimalistblogger · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Industry: Blogs and publishing (declares
Blog)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on 123NET (192.96.218.37)
- DNS: sf-worlds.com
- Email: seo-theory.com
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,893,003, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted