Learn how to monitor competitor websites for SEO changes — new pages, deleted pages, title changes and schema updates — and use that intelligence to stay ahead.
A competitor watch crawls a competitor's website on a schedule — weekly or monthly — and compares each crawl to the previous one. It reports any changes it detects: new pages published, pages deleted, title tags changed, meta descriptions updated, and structured data added or removed.
| Change detected | What it means | Your response |
|---|---|---|
| New page on a keyword | They identified an opportunity | Create a better page on the same topic |
| Title tag changed | They are testing a new angle | Review your own title for the same query |
| FAQ schema added | Not a rich-result play — FAQ rich results have been restricted to government and health sites since 2023 | Ignore the markup. Read the questions they chose to answer — that is the actual signal |
| Page deleted | They abandoned a topic | Opportunity to own that space |
A change-detection tool is very good at telling you that something changed and completely unable to tell you whether it mattered. Left unfiltered, that produces a weekly report full of title tweaks and reworded descriptions, and a team that feels obliged to respond to each one.
Almost none of it is worth responding to. A rewritten title usually means a new person joined the team or a template changed — and even when it was deliberate, Google frequently rewrites titles in the results anyway when it judges the supplied one a poor fit for the query, so the title you are diffing may not be the title anyone sees. A new schema block usually means somebody installed a plugin.
Two things in the report genuinely carry information, because they cost the competitor something to do:
"Competitor added FAQ schema → they are going for rich results → add FAQ schema to your page" is the standard reading, and every step of it is wrong.
FAQ rich results were restricted by Google to recognised government and health sites in 2023, and HowTo rich results were removed entirely. A commercial site adding FAQPage markup today gets no FAQ dropdown in the search results, however clean the implementation. So whatever your competitor was hoping for, they are not getting it — and copying the markup gets you the same nothing.
The signal is one level down, in the content the markup describes. They sat down and decided which seven questions were worth answering on that page. That list is the output of somebody's research into what their buyers ask, and it was expensive to produce and is now sitting on the open web for you to read.
So read the questions, not the JSON-LD. If those questions are ones your buyers ask and your equivalent page does not answer, you have found a real gap — and it is a gap that exists whether either of you marks anything up.
This is the failure mode that competitor monitoring most reliably produces, and it is worth naming plainly: a competitor publishes a page, you publish a similar page, and you now have a slightly worse version of something that already exists and already ranks.
That page cannot win. It arrives later, it competes from behind, and it says what the other page said. It is also exactly the sort of derivative content that gets reassessed downwards when Google runs a core update — not through any penalty, but because it is simply a worse answer than the one it is copying.
The useful move runs the other way. Read their page properly, and look for the gaps:
A diff shows you inputs, never outcomes. You can see that a competitor published twelve pages last quarter; you cannot see whether any of them brought a single customer. A competitor confidently doing something ineffective looks exactly like a competitor confidently doing something clever, and there is no way to tell them apart from the outside.
That asymmetry is worth holding onto, because it is the thing that makes competitor monitoring dangerous when it is used badly. A team that follows a competitor into every move they make has outsourced its strategy to an organisation whose results it cannot see, and whose reasoning it is guessing at.
Use the watch for what it is good at: noticing that something significant happened, and reading what your competitors chose to say. Then make your own decision, informed by the thing they will never have — your own data, your own customers, and your own honest sense of what you can do better than anybody else.
New pages, deleted pages, and substantial changes to the pages that compete with yours. Everything else is noise. A title tweak, a reworded meta description, a new schema block — these are the changes a diff tool reports most often and they almost never mean anything you can act on. What means something is a competitor publishing eight pages about a topic they previously ignored, because that took a decision, a budget and somebody's time, and people do not spend those on nothing.
Not for the reason you are thinking. FAQ rich results have been restricted to recognised government and health sites since 2023, so a commercial site adding FAQPage markup will not get FAQ dropdowns in the SERP — whatever they were hoping for, they are not getting it. What is genuinely informative is the content underneath the markup: the questions they decided were worth answering. Read those. If they are questions your buyers ask and your page does not answer, that is a real gap, and it exists whether or not either of you marks it up.
Usually nothing. Titles get rewritten because a new person joined the team, because a template changed, or because somebody read an article. And even when the change was deliberate, Google frequently rewrites titles in the results anyway when it judges the supplied one a poor fit for the query — so the title you are diffing may not be the title anybody sees. Note it, do not act on it, and certainly do not copy it. A title should describe your page, and their page is not your page.
No, and this is the failure mode competitor monitoring most reliably produces. Copying their page gets you a slightly worse version of a page that already exists and already ranks, which is the definition of a page nobody needs — and it is exactly the derivative content that gets reassessed downwards when Google runs a core update. The useful move is the opposite: read their page carefully, find what it does not say, and write the page that says it. The gap is where the opportunity is, and their page hands you a map of it.
Monthly is right for almost everybody. Weekly monitoring of a competitor produces a weekly stream of changes, and a weekly stream of changes produces a team that reacts — which is precisely what you do not want, because the changes that matter are visible over months and the ones that are visible over weeks are noise. If you find yourself acting on a competitor's diff within days, the tool has stopped informing your strategy and started replacing it.
Sometimes, and it is worth a moment's thought before assuming so. Deletion means they concluded a topic was not worth maintaining, and there are two very different reasons for that: it was not working for them, or it was not working for anybody. If the topic is genuinely central to what you do and you can answer it better, their retreat is an opening. If they abandoned it because the traffic never converted, following them into it is inheriting a decision somebody else already regretted.
Why they did anything. A diff shows you what changed on a page; it cannot show you the meeting, the data, or the failure that prompted it. It also cannot show you whether any of it worked — you are watching their inputs, not their outcomes, and a competitor confidently doing something ineffective looks exactly like a competitor confidently doing something clever. That is worth remembering before you follow them into it.
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