Those are really useful suggestions, thanks!

> 1) Include a link to dnsviz.net to check on the DNSSEC status of domains.

I use DNSViz all the time. They've done a great job of displaying the entire trail and helping debug DNSSEC issues. But it's a bit too detailed for my liking. I'm thinking about how I would add this to Wirewiki. What to show and hide by default, how to format it, etc. Adding something similar is pretty high on my list for Wirewiki.

> 2) Shared fate [...]

I do already show ASNs for A/AAAA records, but adding those to NS and MX addresses as well would be useful. I'm a bit hesitant to add more data to the overview, but a separate page that shows an analysis of shared name server resources could be useful indeed. I've added it to the list.

> 3) displaying whether a domain exists on popular block lists would be awesome.

Absolutely. Already on the list :)

> You could spend the rest of your life building this and never actually completing it, be careful!

Haha, I've already spent 5 years, and I don't mind to keep going as long as it's interesting and sustainable!