What powers sigmas.com?
Last seen Aug 2026 · 24 technologies across 12 categories
Analytics
CDN
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Reviews
Security
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 checked
AI Crawlers
No AI crawlers blocked
Audience
- 67% phone
- 33% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.39 / 10 · ranked #38,382,247 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 3.1 MB · 242 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
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Recent changes
- dropped Amazon ALB Aug 2026
- dropped Amazon Web Services Aug 2026
- dropped Bootstrap Jun 2026
- dropped Hammer.js Jun 2026
- detected Amazon ALB May 2026
- detected Amazon Web Services May 2026
- detected Cloudflare Bot Management May 2026
- detected Trustpilot May 2026
- dropped Cloudflare Bot Management Mar 2026
- detected Hammer.js Jan 2026
- detected Microsoft Clarity Jan 2026