The pattern in one line
One AI engine names and cites your pages, while the others answer the same questions without you.
Each AI engine retrieves and weighs sources differently, so results can differ widely. A gap on one engine often points to crawler access or the sources that engine prefers. A gap on every engine but one points to a thin footprint across the web. Compare engines per prompt before changing any pages.
What this looks like
You check ChatGPT and your brand shows up with a link to your guide. Good. Then you check Perplexity, Gemini, and Claude and the same question returns answers without you. Nothing about your site changed between those checks.
Engines are separate products. They collect sources in different ways, treat crawlers differently, and weigh page types differently. Some lean on live web retrieval, others on what a model learned earlier, and many use a mix. Your site can fit 1 engine’s sources well and miss on another’s.
This pattern is common because most teams check the engine they use themselves. One good result feels like proof, and the others go unseen. Customers use many engines, and any of them can be the one that sends the next inquiry.
A gap is not always caused by something you did. An engine may simply have fewer sources about your type of business or your region. The goal is to learn whether the cause is on your side, such as blocked crawlers or unreadable pages, or in the wider set of sources.
The useful comparison is engine against engine for the same prompt. A prompt answered well in 1 place and badly in 4 tells you where to look first.
Common traits
- A healthy mention rate on 1 engine and close to none on others
- Your pages are cited on the strong engine, while the weak engines cite other sources
- Weak engines name different competitors
- Results are steady on the strong engine and patchy elsewhere
- The gap is invisible if you only check 1 engine
Why it happens
-
Crawler access differs
Each engine uses its own crawlers, and some run separate ones for search and for training. A robots.txt rule or firewall setting that blocks the search crawler for 1 engine leaves that engine without your pages.
-
Engines use different sources
One may lean on live search results, another on licensed data or earlier training. A source that carries you in 1 place may not exist in another.
-
Page types are weighted differently
Some engines may lean on forums and reviews, others on publisher or reference pages, so the same site can fit 1 engine better than another.
-
Your presence is narrow
If only 1 or 2 sites describe you, any engine that does not use those sites has little to go on.
How to confirm it in Doily
- Open AI visibility and break results down by engine for each tracked prompt.
- Note the engines where the mention rate is far below your best engine, and check the cadence printed next to each engine's numbers.
- Compare the cited sources on the strong engine with those on the weak ones.
- Treat DeepSeek results as approximate, since they are labeled that way in the product, and judge that engine on trend more than on a single answer.
Fixes to try
| Fix | Impact | Effort |
|---|---|---|
| Review robots.txt and firewall rules for each AI crawler you want to reach your pages | High | Low |
| Keep key facts in plain HTML so any crawler can read them | Medium | Low |
| Track each engine separately instead of averaging across all of them | Medium | Low |
| Broaden where your business is described, such as review sites, directories, and industry lists | Medium | High |
| Get your pages onto the sources the weak engines cite for your category | High | High |
What to watch after
- Mention rate per engine
- The gap between your best and worst engine
- Cited sources per engine
- Crawler access after a site or hosting change
Questions
Should I focus on the engine that already cites me?
Keep it healthy, but spend most effort where you are missing. Customers use several engines, and a weak engine can be the biggest opening.
Do all 9 engines need to give the same result?
No. Differences between engines are normal. The aim is to be present on the engines your customers use, not to match numbers across all 9.
Does blocking an AI crawler stop an engine from mentioning me?
Not necessarily. Blocking a search crawler can keep your pages out of that engine's search answers, but it does not control what other sites say about you, so the engine may still name you.
