What powers zennerandritter.com?
Last seen Sep 2026 · 48 technologies across 25 categories
Advertising
Analytics
Authentication
CDN
CMS
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Load balancers
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Retargeting
Reviews
Security
Tag managers
UI frameworks
Web servers
Webmail
Widgets
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 54% phone
- 46% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.80 / 10 · ranked #4,345,137 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 175 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 3.6 MB · 165 requests
- WordPress theme: pro (child: pro-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Industry: Home and construction (declares
HVACBusiness)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (141.193.213.10)
- DNS: GoDaddy DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 12,299,460, 2 hosts
- Verified with: Apple Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| zennerandritter.com | 35 |
| www.zennerandritter.com | 24 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft Clarity Sep 2026
- detected Priority Hints Mar 2026
- detected Microsoft 365 Feb 2026
- detected Apple iCloud Mail Dec 2025