What powers masterclock.com?
Last seen Aug 2026 · 18 technologies across 12 categories
Advertising
Analytics
CDN
Font scripts
Hosting
JavaScript libraries
Security
Tag managers
UI frameworks
Video players
Web servers
Webmail
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 76% desktop
- 24% phone
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.00 / 10 · ranked #1,584,356 of all domains
38 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 15.6 MB · 167 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CONNECTRIA-ASN-1 (209.134.58.57)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 8,042,701, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Apache HTTP Server Jul 2026
- detected Cloudflare Jul 2026
- detected Cloudflare Bot Management Jul 2026
- detected GoDaddy Jul 2026
- detected Google Analytics Jul 2026
- detected Google Font API Jul 2026
- detected Google Tag Manager Jul 2026
- detected HSTS Jul 2026
- detected jQuery Jul 2026
- detected jQuery UI Jul 2026
- detected Linkedin Insight Tag Jul 2026
- detected Microsoft 365 Jul 2026
- detected Microsoft Advertising Jul 2026
- detected Microsoft Clarity Jul 2026
- detected Modernizr Jul 2026
- detected Vimeo Jul 2026
- detected YouTube Jul 2026
- detected ZURB Foundation Jul 2026