Real estate specifically is very hard to "value" sight unseen from a bidding perspective. The post I shared - with the information on what to look out for as well as possible additional costs - is part of helping people to understand what to bid.
Over the weekend, I pulled some data from my website to find the cheapest homes you can buy from the US federal government. The outliers (a $3,000 house in Flint, MI) are often in quite a state of disrepair, but there are lots of...lots...which are in reasonable condition across many US states.
Indeed, I recently added an API with a free tier (https://govauctions.app/developers) If the free cap is too low for you to get an understanding of what you can do with it, let me know.
I am still on Vercel (yes I know, trying to migrate off...) and it gives you automated alerts when there are anomalous traffic spikes. Funnily enough, I have had about 10 scrapers from various places scraping the site in the last week.