Canonical URL is unreliable to get siteUrl from since it can be an external URL

[supun-io]

{
  "version": "1.0",
  "url": "https://ishini.io/marketing-struggles",
  "lastUrl": "https://ishini.io/marketing-struggles",
  "title": "Navigating the Challenges of Marketing a Privacy-Focused CMS: My Journey with Hyvor Blogs",
  "description": "I want to take you behind the scenes of my journey, particularly the hurdles I've been facing in getting the word out about Hyvor Blogs, a blogging platform.",
  "siteName": "Ishini's blog",
  "siteUrl": "https://www.indiehackers.com",
  "canonicalUrl": "https://www.indiehackers.com/post/navigating-the-challenges-of-marketing-a-privacy-focused-cms-my-journey-with-hyvor-blogs-30553da46a",
  "publishedTime": "2024-01-14T23:22:14+00:00",
  "modifiedTime": "2024-02-05T15:06:36+00:00",
  "thumbnailUrl": "https://ishini.io/media/yDUkNRCfUfN6ieNAWXJYY94CumHSLwXGGIPU7d7N.jpg",
  "iconUrl": null,
  "locale": "en",
  "authors": [
    {
      "name": "Ishini Avindya",
      "url": null
    }
  ],
  "tags": [],
  "durationMs": 1187
}