What powers callswan.com?
Last seen Oct 2026 · 54 technologies across 26 categories
Accessibility
Advertising
Analytics
Caching
CDN
CMS
Databases
Font scripts
Hosting
Issue trackers
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Performance
Photo galleries
Programming languages
Security
Tag managers
UI frameworks
Video players
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 Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
Content Signals:
search=yes ai-train=yes ai-input=yes declared in robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, Content Signals
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.13 / 10 · ranked #3,259,298 of all domains
26 referring domains · OpenPageRank
Search traffic
360 est. monthly organic visits (US)
380 keywords in Google's top 30
Core Web Vitals
| LCP | 1.3 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 4.2 MB · 176 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Swan Electric, Plumbing, Heating & Air
- Industry: Home and construction (declares
Plumber)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Amazon Web Services (35.172.94.1)
- DNS: GoDaddy DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 4096, expires Jan 2027
- Common Crawl link graph: rank 9,400,258, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.callswan.com | 35 |
| callswan.com | 33 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Oct 2026
- detected Cloudflare Bot Management Oct 2026
- detected Mailgun Jun 2026
- detected Emotion Feb 2026
- detected Font Awesome Feb 2026
- detected lit-element Feb 2026
- detected lit-html Feb 2026
- detected Sentry Feb 2026
- dropped Webpack Jan 2026