What powers safetyletterbox.com?
Last seen Aug 2026 · 49 technologies across 22 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
Hosting panels
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
Performance
Programming languages
Retargeting
Security
Tag managers
Video players
Web servers
Webmail
Widgets
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 73% desktop
- 27% phone
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.84 / 10 · ranked #4,128,258 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United Kingdom)
- CDN: Cloudflare
- Weight: 17.3 MB · 154 requests
- WordPress theme: impreza · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- The Safety Letterbox Company
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.42.141)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 8,212,628, 3 hosts
- Verified with: Brevo, Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.safetyletterbox.com | 26 |
| safetyletterbox.com | 24 |
| www.homeowner.safetyletterbox.com | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- detected OWL Carousel Apr 2026
- detected MonsterInsights Feb 2026
- detected Cloudflare Browser Insights Nov 2025
- detected Facebook Pixel Nov 2025
- detected PixelYourSite Nov 2025
- dropped Isotope Oct 2025