What powers optimizeforseo.com?
Last seen Sep 2026 · 13 technologies across 9 categories
Analytics
Appointment scheduling
CDN
Miscellaneous
Security
Tag managers
UI frameworks
Video players
Webmail
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 only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt 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: llms.txt, Content Signals
Open Page Rank
2.80 / 10 · ranked #1,981,557 of all domains
48 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.4.149, IPv6)
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 2,725,887, 3 hosts
- Verified with: Google
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Animate.css Sep 2026
- dropped Bootstrap Sep 2026
- dropped core-js Sep 2026
- dropped Google Font API Sep 2026
- dropped Next.js Sep 2026
- dropped Node.js Sep 2026
- dropped Phusion Passenger Sep 2026
- dropped Priority Hints Sep 2026
- dropped React Sep 2026
- dropped Swiper Sep 2026
- dropped Tawk.to Sep 2026
- dropped Webpack Sep 2026
- dropped Engintron Jul 2026
- dropped Nginx Jul 2026