Thanks for your suggestion! I recorded the URL https://arstechnica.com/gadgets/2025/02/x-is-reportedly-blocking-links-to-secure-signal-contact-pages/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social. (Is this not what you intended? You can manually submit the correct URL instead - see link in bio.) The URL will be added to the index if the admins approve it, usually this happens within 48 hours.