What powers grumsendev.dk?
Last seen Sep 2026 · 15 technologies across 11 categories
Analytics
Authentication
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
UI frameworks
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Allowed
- ClaudeBot Allowed
- cohere-training-data-crawler Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- OAI-SearchBot Allowed
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 25 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
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 100% phone
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.06 / 10 · ranked #1,480,044 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Danish
- CDN: Vercel
- Weight: 1.5 MB · 83 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Grumsen Development ApS
- Industry: Professional services (declares
ProfessionalService) - Profiles: LinkedIn, GitHub, Facebook, Instagram
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (76.76.21.21)
- Email: grumsendev.dk
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 138,845, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted