What powers 
theguardian.engineering?
Last seen Sep 2026 · 6 technologies across 4 categories
Caching
Varnish
since Oct 2022
CDN
Fastly
since Oct 2022
JavaScript frameworks
PaaS
GitHub Pages
since Oct 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
4.75 / 10 · ranked #274,469 of all domains
20 referring domains · OpenPageRank
Page
- Language: English
- CDN: Fastly
- Weight: 1.1 MB · 15 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: IBM NS1
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 607,448
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 Priority Hints Sep 2026
- detected Priority Hints Jan 2026