2 resources from Google Search Console Help we point founders to, and the questions each answers.
🛠️ Tool
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Why we picked it
You cannot fix indexing mistakes you cannot see, and this free tool from Google shows you exactly which of your pages are indexed and why the rest are not. Every founder with a website should set up Search Console on day one, the Page Indexing report surfaces most of the errors in the other two resources for you, with Google's own reason attached to each excluded page. Start here before paying for any SEO tool.
Why we picked it
This is Google's own explanation of the three numbers that actually tell you if your content is getting found: impressions, clicks, and average position. Search Console is free and shows real search demand for your pages, not a vanity pageview count, so it is the honest first place to look before you pay for any ranking tracker. Start here to learn what each metric means, then read your own Performance report against it.
Impressions show how often your page appeared in Google results, clicks show how often someone actually came through, and position is your average ranking, together they tell you whether people are seeing you and choosing you.
It is completely free and reports on the real search terms you already rank for, so it is better for measuring live performance than for guessing at keywords you hope to win.
A page with rising impressions but flat clicks is usually a title or snippet problem, not a content problem, which is a fix you would never spot from pageviews alone.