What powers calculusfoundation.com?
Last seen Sep 2026 · 22 technologies across 14 categories
Analytics
CDN
CMS
Ecommerce
IaaS
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Security
Tag managers
UI frameworks
Webmail
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 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 checked
AI Crawlers
1 of 33 AI crawlers blocked
Standards: llms.txt
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.42 / 10 · ranked #32,438,965 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Google
- Weight: 5.3 MB · 298 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Calculus Foundation Repair and Waterproofing
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Wix (185.230.63.107)
- DNS: microsoftonline.com
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 70,270,041
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- detected Bootstrap Sep 2026
- detected core-js Sep 2026
- detected Facebook Pixel Sep 2026
- detected Google Analytics Sep 2026
- detected Google Tag Manager Sep 2026
- detected GSAP Sep 2026
- detected PostHog Sep 2026
- detected RequireJS Sep 2026
- detected RSS Sep 2026
- dropped Bootstrap Aug 2026
- dropped core-js Aug 2026
- dropped Facebook Pixel Aug 2026
- dropped Google Analytics Aug 2026
- dropped Google Tag Manager Aug 2026
- dropped GSAP Aug 2026
- dropped PostHog Aug 2026
- dropped RequireJS Aug 2026
- dropped RSS Aug 2026
- detected Bootstrap Jun 2026
- detected Bunny Jun 2026
- detected core-js Jun 2026
- detected Facebook Pixel Jun 2026
- detected Google Analytics Jun 2026
- detected Google Tag Manager Jun 2026
- detected GSAP Jun 2026
- detected PostHog Jun 2026
- detected RequireJS Jun 2026
- detected RSS Jun 2026
- detected Sentry Jun 2026
- detected Wix eCommerce Jun 2026
- dropped Bunny Jan 2026
- dropped Sentry Jan 2026
- dropped Wix eCommerce Jan 2026
- detected Lodash Dec 2025