What powers kctennis.nl?
Last seen Aug 2026 · 30 technologies across 17 categories
Advertising
Analytics
CDN
Databases
Ecommerce
Hosting panels
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Programming languages
Reviews
Security
Tag managers
UI frameworks
AI Crawlers
Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
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 not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
AI Crawlers
8 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 68% phone
- 32% desktop
Netherlands
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.22 / 10 · ranked #1,242,733 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.86.87, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 27,775,552, 2 hosts
- Verified with: Brevo, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped LiteSpeed Jul 2026
- detected Amazon S3 Jun 2026
- detected Amazon Web Services Jun 2026
- detected Cloudflare Jun 2026
- detected Cloudflare Browser Insights Jun 2026