> A claim by claim method for checking polished AI answers about SEO, using a real exchange about brand names in page titles and what the evidence supports.
>
> Source: https://gerriscorp.com/guides/fact-check-ai-seo/ · Updated 2026-10-13 · By Chris Abraham, Gerris Corp

# How to fact check a confident AI answer about SEO before you act on it

By [Chris Abraham](https://gerriscorp.com/about/) · Published October 13, 2026

I asked an AI search assistant whether ending every page title with a pipe and the company name hurts a website. The answer came back polished, cited, and full of percentages. When I pushed my own opinion back at it, it declared that opinion “100% true” and invented psychology to support it. The recommendation itself was reasonable. A good share of the evidence was not. This is the routine I use to separate the two before anything reaches a client's site.

## Turn the answer into a list of claims

Paste the answer into a document and give every sentence that asserts a fact its own line. In this exchange the list read: titles are cut off after about 60 characters; Google rewrites more than 75 percent of titles; Google strips pipes and brand names; Google displays the site name on its own; repeated suffixes cause duplication penalties and dilute relevance; searchers read a pipe as a sign of automated spam.

A sound recommendation can rest on claims that are half wrong. Grading each line separately stops a good conclusion from carrying bad evidence into your report.

## Grade every claim by where it comes from

Each line goes into one of four bins: the platform's own documentation, an independent study with a published method, a vendor test, or nothing traceable. Here is how this exchange graded out.
| Claim | What I found |
| --- | --- |
| Titles are cut off at about 60 characters | Google's documentation sets no maximum length and says the displayed title is shortened to fit the device. Sixty characters is an industry habit, not a Google limit. |
| Google rewrites over 75 percent of titles | I could not trace that figure to a primary dataset about pipes or brand names. The best documented study I found, by Zyppy, measured 61.6 percent of 80,959 titles on 2,370 sites, using desktop results from early 2022. Titles longer than 70 characters were rewritten 99.9 percent of the time. |
| Google strips pipes | The same study found pipes removed or replaced in 41.0 percent of titles that used them, often swapped for a dash. Dashes were removed 19.7 percent of the time. |
| Google strips brand names | The study names missing or superfluous brand names as a rewrite trigger and gives no percentage. Google says it may omit a site name that repeats the one already shown. |
| Google shows the site name separately | Supported by Google's documentation. |
| Repeated suffixes cause penalties or crawling problems | Nothing traceable. Google warns that boilerplate titles make results hard to tell apart, which is about usefulness to searchers, not a penalty. |
| Searchers read a pipe as spam | Nothing traceable. I found no study measuring that reaction. |

## Follow every number back to its population

A statistic describes the set of things someone counted, at a particular time, in a particular way. Ask who measured it, when, on which device, and what exactly was counted. A rewrite rate for all titles says nothing specific about pipes. A desktop sample from early 2022 may not describe mobile results today. When an assistant cannot show where a number came from, or the source measures something else, drop the number and keep the point in plain words.

## Distrust agreement that grows when you push

The clearest warning in this exchange came after I shared my own view. The follow-up adopted my wording, raised its certainty, and added mechanisms nobody had measured. An assistant that grows more confident because you sounded confident is reflecting you back at yourself. Open a fresh conversation and ask the opposite question: what is the case for keeping the company name in every title? If the answer flips that easily, the evidence was never doing the work.

## Settle it with your own data

For title changes, the deciding evidence sits in your own Search Console. Change one group of pages, leave a comparable group untouched, and compare clicks and click-through rate across several weeks. A controlled result from your own site outranks any general statistic, accurate or invented. My guide to [diagnosing a Google traffic drop in Search Console](https://gerriscorp.com/guides/traffic-drop/) covers lining changes up with dates, and the one on [measuring AI citations, referrals, and leads](https://gerriscorp.com/guides/measure-ai-search/) applies the same discipline to AI search reporting.

## What survived the check

After grading, the defensible advice fit in a few lines: write a specific title for each page, include the company name where it helps someone recognize or choose the result, keep titles concise, and measure the change. Dropping a repeated suffix remains a legitimate editorial call. It simply has to be presented as judgment backed by a test, never as escape from a penalty that does not exist.

## References
- [Google Search Central: Influencing your title links in search results](https://developers.google.com/search/docs/appearance/title-link)
- [Zyppy: Google rewrites 61% of page title tags, a study of 80,959 titles from early 2022](https://zyppy.com/seo/google-title-rewrites/)

Written by [Chris Abraham](https://gerriscorp.com/about/), founder of Gerris Corp in Arlington, Virginia, from his own client engagements, with every technical claim checked against the documentation listed. Websites since 1994, digital marketing since 2002. [Editorial standards](https://gerriscorp.com/standards/) · [Upwork profile](https://www.upwork.com/freelancers/chrisjabraham)