What powers 
primaryengineer.com?
Last seen Sep 2026 · 31 technologies across 17 categories
CDN
CMS
Cookie compliance
CRM
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Performance
Photo galleries
Programming languages
Security
UI frameworks
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 54% phone
- 46% desktop
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.68 / 10 · ranked #772,821 of all domains
95 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United Kingdom)
- CDN: Cloudflare
- Weight: 3.7 MB · 77 requests
- WordPress theme: mint · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Primary Engineer
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (141.193.213.10)
- DNS: Cloudflare DNS
- Email: emailsecurity.app
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 8,447,684, 4 hosts
- Verified with: Google, LinkedIn, Microsoft 365, Zoho
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.primaryengineer.com | 26 |
| events.primaryengineer.com | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped core-js Apr 2026
- dropped Facebook Pixel Apr 2026
- dropped Google Analytics Apr 2026
- dropped Google Tag Manager Apr 2026
- detected Twitter Emoji (Twemoji) Mar 2026
- detected core-js Feb 2026
- detected Facebook Pixel Feb 2026
- detected PixelYourSite Feb 2026