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JSON-LD Explained for Personal Websites

Hacker News · Jun 21, 2026, 6:51 PM

Key takeaways

  • JSON-LD, also known as JSON Linked Data, is a format for adding structured data to webpages.
  • It’s been 4 months since my first post where I described building this site, and Wakatime estimates I’ve spent ~100 hours coding now, not including time spent researching and testing.
  • To add JSON-LD to a page, add the following somewhere in your <head> section:

JSON-LD, also known as JSON Linked Data, is a format for adding structured data to webpages. It can aid web crawlers in understanding the semantic structure of your site, qualifying you for richer link previews, and even potentially improving your search ranking.

It’s been 4 months since my first post where I described building this site, and Wakatime estimates I’ve spent ~100 hours coding now, not including time spent researching and testing. Since then, this site has been receiving plenty of polish, including the addition of JSON-LD on each page.

To add JSON-LD to a page, add the following somewhere in your <head> section:

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