What powers woutervanleeuwen.com?
Last seen Jul 2026 · 12 technologies across 10 categories
Analytics
Google Analytics
since Dec 2022
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Dec 2022
Programming languages
Python
since Dec 2022
RUM
Datadog
since Jun 2026
Security
HSTS
since Feb 2026
Video players
Plyr
since Dec 2022
Web servers
Webmail
Microsoft 365
since Mar 2023
AI Crawlers
Blocks 2 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- meta-externalagent Blocked
Search and AI assistants
- PetalBot Blocked
The other 31 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
2 of 33 AI crawlers blocked
Open Page Rank
1.85 / 10 · ranked #4,068,608 of all domains
17 referring domains · OpenPageRank
Infrastructure
- Hosted on Google Cloud (35.195.106.128)
- DNS: iu.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,373,794, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Cloudinary Jun 2026
- dropped Font Awesome Oct 2025