Parent topic
What is a parent topic?
A parent topic is the broader keyword behind a more specific search: the keyword the current top-ranking page gets most of its traffic from. If the top page for "best time to water tomatoes" gets most of its traffic from "how often to water tomatoes", that is the parent topic. Ahrefs popularised the term.
Parent topics answer a practical question in keyword research: does this keyword need its own page, or can it be covered as part of a broader one? If a keyword’s parent topic is a different keyword, Google is likely treating them as one topic, and a single page can rank for both. If a keyword is its own parent topic, it may warrant a dedicated page.
Why parent topic matters for SEO
Parent topics help you avoid writing near-duplicate pages for variations of the same idea, which wastes effort and can cause keyword cannibalization. They also point you to the version of a topic with the most traffic potential.
How to use parent topics
- Look up the parent topic for each keyword on your list.
- Group keywords that share a parent topic into one cluster.
- Target the parent topic as the primary keyword, and the rest as secondary keywords.
- Check the SERP: if the results for the specific keyword are very different, it may still need its own page.
Parent topic example
"Can you freeze cooked rice", "how long can cooked rice be frozen" and "freezing rice safely" all have the parent topic "can you freeze rice". One page targeting "can you freeze rice" and answering the variations can rank for all of them.
Parent topic FAQ
Is parent topic a Google metric?
No. It is a concept from SEO tools, calculated from the keywords the top-ranking page ranks for.
Should I always target the parent topic instead?
Usually, if the results are similar. If the specific keyword shows different pages with a different intent, give it its own page.
Related SEO terms
Traffic potential estimates the total organic traffic you could get by ranking first for a topic, counting every related query the top page ranks for.
Keyword clustering is grouping keywords that share intent and search results, so each group can be targeted by one page.
A primary keyword is the main search term a page is built to rank for. It guides the page’s title, H1, URL and content.
Secondary keywords are related terms a page targets alongside its primary keyword: variations, synonyms and subtopics with the same intent.
Long-tail keywords are specific, lower-volume search terms. Each brings little traffic, but together they’re easier to rank for and often convert well.