qiita-alert is a Chrome add-on developed by hogesuke that displays the post date on Qiita and makes it easier to identify older posts.

On Qiita, only the edit date is displayed for articles that have been edited after posting. This add-on adds the display of the post date.

To make it easier to determine the freshness of an article, the display color changes based on the number of days since the post date. If the post is within 1 year, it is displayed in blue. If it is between 1 and 2 years old, it is displayed in yellow. If it is more than 2 years old, it is displayed in red.

If you encounter any issues or have any suggestions, the developer would appreciate it if you could open an Issue or Pull Request on the GitHub repository.