What powers 
polarheat.nl?
Last seen Sep 2026 · 25 technologies across 15 categories
Advertising
Analytics
CDN
Cookie compliance
Ecommerce
JavaScript frameworks
JavaScript libraries
Miscellaneous
Payment processors
Performance
Reviews
Security
Tag managers
UI frameworks
Webmail
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- 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
- 62% phone
- 38% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #356,722 of all domains
65 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- CDN: Cloudflare
- Weight: 3.6 MB · 513 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Polarheat
- Profiles: Instagram
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (23.227.38.65)
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,541,426, 2 hosts
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
- detected American Express Sep 2026
- detected Shop Pay Sep 2026
- dropped Amazon S3 Aug 2026
- dropped Amazon Web Services Aug 2026
- dropped Bootstrap Aug 2026
- dropped Elementor Aug 2026
- dropped Facebook Pixel Aug 2026
- dropped Font Awesome Aug 2026
- dropped Google Tag Manager for WordPress Aug 2026
- dropped Gravity Forms Aug 2026
- dropped jQuery Aug 2026
- dropped jQuery Migrate Aug 2026
- dropped jQuery UI Aug 2026
- dropped Klaviyo Aug 2026
- dropped LiteSpeed Aug 2026
- dropped Litespeed Cache Aug 2026
- detected Microsoft 365 Aug 2026
- dropped MySQL Aug 2026
- dropped PhotoSwipe Aug 2026
- dropped PHP Aug 2026
- dropped RankMath SEO Aug 2026
- dropped RSS Aug 2026
- dropped Site Kit Aug 2026
- dropped Slick Aug 2026
- dropped Swiper Aug 2026
- dropped Trustpilot Aug 2026
- dropped Twitter Emoji (Twemoji) Aug 2026
- dropped Underscore.js Aug 2026
- dropped Vue.js Aug 2026
- dropped WooCommerce Aug 2026
- dropped WordPress Aug 2026
- detected Apple Pay Jul 2026
- detected Cloudflare Jul 2026
- detected Flickity Jul 2026
- detected Google Pay Jul 2026
- detected HSTS Jul 2026
- detected Judge.me Jul 2026
- detected Klarna Checkout Jul 2026
- detected LazySizes Jul 2026
- detected Mastercard Jul 2026
- detected Shopify Jul 2026
- detected Visa Jul 2026
- detected ZURB Foundation Jul 2026
- dropped jsDelivr May 2026
- dropped YouTube May 2026
- detected GSAP Apr 2026
- dropped Google Font API Mar 2026
- detected Klaviyo Mar 2026
- dropped Plesk Mar 2026
- detected Amazon S3 Feb 2026