Website preview does not show title for main page

[saturclay]

Website (required)

[VocaDB / UtaiteDB / TouhouDB]

Describe the bug (required)

When linking to the main page (as opposed an individual entry) for each of the databases (on, for instance, Discord), no title or image is shown. Ideally, the name of the website and the website's logo would show in the preview.

(Tangentially related to issue 1319)

To Reproduce (optional)

Links to the following do not show a title or preview image:

• https://vocadb.net/
• https://touhoudb.com/
• https://touhoudb.com/

Checklist (required)

Fill out the checklist. Use strikethroughs or leave fields empty if you don't know or are unable to check/test.

• [x] Searched VocaDB/vocadb for duplicate issues.
• [ ] Tested on the beta site.
• [ ] Tested on different browsers (e.g. Firefox, Chrome, Safari, Edge).
• [ ] Checked in private mode.
• [ ] Cleared browser cache and cookies.
• [ ] Checked the DevTools console.
• [ ] Checked the syslog (mods+ only).