What powers 
underdefense.com?
Last seen Sep 2026 · 44 technologies across 22 categories
Analytics
CDN
CMS
Databases
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Live chat
Load balancers
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Security
SEO
Tag managers
UI frameworks
Webmail
WordPress plugins
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Allowed
- CCBot Allowed
- ClaudeBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- Amazonbot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
- YouBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 23 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 75% desktop
- 25% phone
India
United States
Ukraine
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #336,841 of all domains
151 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 100 ms |
| CLS | 0.1 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.8 MB · 91 requests
- WordPress theme: divi (child: divi-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.26.14.183, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (hard fail), DMARC reject, CAA
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 1,936,211, 6 hosts
- Verified with: Atlassian, Google, Microsoft 365, OpenAI
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| underdefense.com | 36 |
| app.underdefense.com | 20 |
Full technology history →
Report an incorrect detection
Recent changes
- detected WP-PageNavi Sep 2026
- detected Amazon ALB Aug 2026
- dropped AdRoll Apr 2026
- dropped Microsoft Advertising Apr 2026
- detected Slick Apr 2026
- detected jsDelivr Mar 2026
- detected AdRoll Feb 2026
- detected Microsoft Advertising Feb 2026
- dropped jsDelivr Nov 2025
- dropped WP-PageNavi Nov 2025