What powers heathercorbet.com?
Last seen Sep 2026 · 21 technologies across 13 categories
Analytics
Google Analytics
since Apr 2024
CDN
Cloudflare
since Apr 2024
jsDelivr
since Apr 2024
Customer data platform
Rudderstack
since May 2024
Ecommerce
Kajabi
since Apr 2024
Font scripts
Google Font API
since Apr 2024
Issue trackers
JavaScript libraries
Miscellaneous
Programming languages
Ruby
since Apr 2024
Security
Cloudflare Bot Management
since Apr 2024
Video players
Web frameworks
Ruby on Rails
since Apr 2024
Webmail
Google Workspace
since Apr 2024
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
0.86 / 10 · ranked #15,199,612 of all domains
5 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.21.202, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 9,979,691, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Acuity Scheduling Feb 2026
- dropped HTTP/3 Feb 2026
- dropped PHP Feb 2026