How to hide AI-generated sites from search results

If your results pages feel full of look-alike sites, you can hide AI-generated sites from search results with a few tools, each with a different reach. Some remove whole builder domains. Some hide only images. One popular trick hides Google's own AI answers but leaves AI-made sites alone. Here are five approaches, from the quickest to the most thorough, with an honest note on what each misses.

1. Search operators: exclude builder domains

Google, Bing, DuckDuckGo and most other engines support -site:, which drops results from a domain. Add the main AI builder domains to the end of a search:

ceramic classes near me -site:lovable.app -site:bolt.host -site:vusercontent.net -site:base44.app -site:manus.space

Some browsers let you save this as a custom search engine, so every search adds the exclusions for you.

What it misses: everything on a custom domain, which is where most serious AI-built sites end up. It also makes your queries long, and engines cap how many operators they honour.

2. Google's Web filter (udm=14), and what it really does

Adding &udm=14 to a Google search address, or choosing Web under the search box's More menu, gives you a plain list of links without AI Overviews, ads blocks or other panels. Many guides recommend it as a way to "remove AI from Google".

What it misses: it removes Google's AI features, not AI-built sites. The links are the same ones you would see otherwise. It is still a pleasant way to search, and it pairs well with the other methods here.

3. Blocklists in uBlock Origin

uBlock Origin, the open-source content blocker, can hide search results from listed domains using community filter lists. Several lists target AI content farms and AI image sites, the best known being the HUGE AI Blocklist on GitHub. DuckDuckGo's "hide AI images" setting uses similar public lists, but only on the Images tab.

What it misses: a list only knows the domains someone added, and AI sites appear faster than volunteers can list them. Some of the largest lists have gone months without updates. Check when a list last changed before relying on it.

4. Kagi SlopStop

Kagi, a paid search engine, launched SlopStop in November 2025. Users report results as AI slop, Kagi's staff review the reports, and domains judged to be mostly AI-generated content are labelled and pushed down the rankings. Users can dispute a label.

We compare it with DuckDuckGo's no-AI search and Kitsuvo in no-AI search compared.

What it misses: it lives inside one paid search engine, it downranks rather than hides, and it targets low-value AI content rather than AI-built sites in general. A well-made small business site built with Lovable is not slop and won't be touched, which is arguably correct.

5. Kitsuvo: scores in the results list

Kitsuvo is our no-AI web browser for Mac and Windows. On Google, Bing and DuckDuckGo it filters out results hosted on AI-builder domains such as lovable.app and bolt.host, plus sites it has already scored as likely AI-built, folding them into one line you can open. Links you follow to a vibe-coded site wait behind a short notice. It never visits a result you didn't open, so nothing leaks just from searching.

Pages you do open are scored from 0 to 100 using fingerprints in the source, the scripts and the hosting, which catches AI-built sites on custom domains too. With blocking on, likely AI-built pages wait behind a short notice with a one-click "Show this site anyway".

What it misses: in the results list it can only judge what the address reveals, so custom-domain sites are marked once you open them, not before. And like any detector, its scores are estimates, which is why each one comes with its evidence.

Which should you use?

Method	Cost	Catches custom domains	Best for
-site: operators	Free	No	A quick one-off search
Google Web filter	Free	Not its purpose	Removing AI Overviews
uBlock Origin lists	Free	Only listed ones	Known content farms
Kagi SlopStop	Kagi subscription	Yes, by review	Low-value AI content
Kitsuvo	Free	Yes, once opened	Seeing every site's build, with evidence

They also stack. Searching with udm=14 in Kitsuvo, with a blocklist for known farms, covers most of what each one misses alone.

For eight tools side by side, each with a one-line "best for", see the roundup of best tools to filter AI-generated content from search.

If you want to understand what makes a site count as AI-built in the first place, start with how to tell if a website was made with AI.