What powers 
arcasearch.com?
Last seen Sep 2026 · 20 technologies across 14 categories
Analytics
CMS
Ecommerce
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Security
Web servers
Webmail
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
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.04 / 10 · ranked #538,518 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0.1 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- Weight: 11.3 MB · 60 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Squarespace (198.49.23.144)
- DNS: dyn.com
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 646,282, 16 hosts
- Verified with: 1Password, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| corp.arcasearch.com | 15 |
| gov.arcasearch.com | 15 |
| www.arcasearch.com | 12 |
| edu.arcasearch.com | 7 |
Full technology history →
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Recent changes
- dropped Angular Sep 2026
- dropped TypeScript Sep 2026
- dropped Zone.js Sep 2026