Information about the website docsopinion.substack.com.
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| Site title: | Axel F Sigurdsson MD, PhD | Substack |
|---|---|
| Site description: | I’m Axel F. Sigurdsson, an Icelandic cardiologist exploring where medicine meets history, and where evidence meets reflection. I write about heart disease, clinical science, and the myths that shape our practice. Click to read Axel F Sigurdsson MD, PhD, a Substack publication with hundreds of subscribers. |
| Site keywords: | No data |
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| URL: | https://docsopinion.substack.com/ |
| HTTP status: | 200 |
| Primary IP: | 104.18.37.200 |
| HTTP server: | cloudflare |
| Redirect hops: | 0 |
| TTFB: | 508 ms |
| Total load: | 511 ms |
| TLS expiry: | 2026-06-24 05:59:56 |
| Robots status: | 200 |
| Canonical URL: | https://docsopinion.substack.com/ |
| Sitemap: | https://docsopinion.substack.com/sitemap.xml, https://docsopinion.substack.com/news_sitemap.xml |
| Hreflang: | No data |
| OpenGraph title: | Axel F Sigurdsson MD, PhD | Substack |
| JS rendered title: | Axel F Sigurdsson MD, PhD | Substack |
| Tech detected: | cloudflare |
| Security headers: | content-security-policy, strict-transport-security |
| Anti-bot detected: | Yes |
| Uptime trend (20): | No data |
| Whois: | Registrar: Amazon Registrar, Inc. | Expires: 2030-04-27T18:02:41Z | Domain: substack.com | Source: rdap |