Information about the website zcalmail.substack.com.
We took the latest snapshot and metadata from this website at 2026-07-08 12:52:05.
Link to zcalmail.substack.com · Shareable URL
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Signals: body_captcha
| Site title: | zcal | Substack |
|---|---|
| Site description: | Get updates on the best free scheduling app on the web. Check us out at zcal.co 💙. Click to read zcal, by zcal team, a Substack publication. |
| Site keywords: | No data |
| Thumbnail: |
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| URL: | https://zcalmail.substack.com/ |
| HTTP status: | 200 |
| Primary IP: | 104.18.37.200 |
| HTTP server: | cloudflare |
| Redirect hops: | 0 |
| TTFB: | 374 ms |
| Total load: | 377 ms |
| TLS expiry: | 2026-08-22 07:50:09 |
| Robots status: | 200 |
| Canonical URL: | https://zcalmail.substack.com/ |
| Sitemap: | https://zcalmail.substack.com/sitemap.xml, https://zcalmail.substack.com/news_sitemap.xml |
| Hreflang: | No data |
| OpenGraph title: | zcal | Substack |
| JS rendered title: | zcal | Substack |
| Tech detected: | cloudflare |
| Security headers: | content-security-policy, strict-transport-security |
| Anti-bot detected: | Yes |
| Uptime trend (20): | 100% success, avg TTFB 374 ms, avg total 377 ms |
| Whois: | Registrar: Amazon Registrar, Inc. | Expires: 2030-04-27T18:02:41Z | Domain: substack.com | Source: rdap |