What powers 
sum41.com?
Last seen Sep 2026 · 17 technologies across 13 categories
Advertising
Analytics
CMS
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Performance
Security
AI Crawlers
Restricts 16 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- AI2Bot Restricted
- Applebot-Extended Restricted
- Bytespider Restricted
- CCBot Restricted
- ClaudeBot Restricted
- cohere-training-data-crawler Restricted
- FacebookBot Restricted
- Google-Extended Restricted
- GoogleOther Restricted
- GPTBot Restricted
- img2dataset Restricted
- meta-externalagent Restricted
- Webzio-Extended Restricted
Search and AI assistants
- Amazonbot Restricted
- DuckAssistBot Restricted
- YouBot Restricted
The other 17 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
16 of 33 AI crawlers restricted
Audience
- 70% phone
- 30% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.34 / 10 · ranked #428,497 of all domains
221 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 6.1 MB · 115 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Sum 41
- Founded: 1996
From Wikidata (CC0).
Infrastructure
- Hosted on Squarespace (198.49.23.144)
- DNS: GoDaddy DNS
- Email: no MX record returned, SPF names Mailgun
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 577,153, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sum41.com | 15 |
| 8bitlandmines.sum41.com | 4 |
Full technology history →
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Recent changes
- dropped Angular Sep 2026
- dropped TypeScript Sep 2026
- dropped Zone.js Sep 2026
- detected Angular Apr 2026
- detected TypeScript Apr 2026
- detected Zone.js Apr 2026
- detected Mailgun Dec 2025