What powers defining.com?
Last seen Sep 2026 · 24 technologies across 15 categories
Analytics
Caching
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
Webmail
WordPress plugins
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 found
- ai.txt not found
- Sep 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 79% phone
- 21% desktop
United States
India
Spain
Brazil
Canada
Philippines
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #317,872 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 5.3 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 4000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Netlify
- Weight: 0.1 MB · 7 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (75.2.60.5)
- DNS: Cloudflare DNS
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 6,905,982, 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
- detected HSTS Sep 2026
- detected Netlify Sep 2026
- dropped Cloudflare Browser Insights May 2026
- detected HTTP/3 Apr 2026
- detected Twitter Emoji (Twemoji) Dec 2025
- detected Cloudflare Browser Insights Nov 2025