SEO Google Checker

Last week I ran an SEO checker on a client’s homepage. It scored 58 out of 100. The report flagged a missing meta description, duplicate H1 tags, and three broken internal links. I fixed those in twenty minutes and the score jumped to 79. That is the real value: it surfaces the low-hanging fruit fast. You paste a URL, wait a few seconds, and get a list of issues ordered by impact. That speed makes it ideal for a pre-publish sanity check or a quick baseline on a new domain. It also checks technical basics like robots.txt presence, sitemap inclusion, canonical tags, and whether the page can be crawled. For onboarding a new client, I run a checker on the homepage and a couple of key landing pages to get a first impression of the site’s health.

But I keep in mind that the score often comes from a Lighthouse-style audit, not from Google’s own algorithm. A 95/100 score does not mean the page is guaranteed to rank. It means the page passed a set of best-practice checks. That distinction matters. I use the checker as a triage tool, not a report card. The prioritisation is useful. Most checkers label issues as critical, medium, or low. I ignore the low-priority items until the critical ones are resolved. That saves time and keeps the focus on changes that might actually move the needle. When you are short on time, an SEO checker gives you a quick list of what to fix now and what can wait.

An SEO checker struggles with anything beyond surface-level structure. It cannot see JavaScript rendering problems that might hide content from crawlers. It will not catch a redirect chain that wastes link equity. It cannot tell you if your content is well-researched or engaging. I once worked on a site that scored 92/100 on an SEO checker but ranked poorly because the content was thin and the backlink profile was weak. The checker had flagged thin content on one page, but the overall score was still high. That made me realise the score can be misleading.

Another awkward area: rank tracking. Some checkers offer a localised ranking check, but that is a different function. If you need to monitor SERP positions, use a dedicated [rank tracker](/rank-tracker/) instead. For large sites, checking each URL individually is impractical. A crawler-based tool like [Screaming Frog](/screaming-frog/) is better suited for site-wide diagnostics. Also, the checker’s recommendations are generic. It might say ‘add more text’ without guidance on what to write. Content strategy requires human judgment. And checkers sometimes flag issues that are intentional, like a noindex tag on a thank-you page. You need to evaluate each recommendation in context. The score itself can become a distraction if you treat it as a goal rather than a starting point.

For a deeper technical audit I rely on [Semrush](/semrush/). It crawls the entire site and catches issues like broken internal links across thousands of pages, canonical misconfigurations, and structured data errors. Screaming Frog gives you fine-grained control over crawl settings and exports data for custom analysis. For a free option, [Bing Webmaster Tools](/bing-webmaster-tools/) provides indexation reports and an SEO scanner that checks common on-page elements. If you prefer a simpler page-level check, [Se Ranking](/se-ranking/) delivers a clear breakdown of titles, descriptions, headings, and content length. [Moz](/moz/) has a useful page checker that includes domain authority metrics, which can help prioritise which pages to optimise first.

None of these replace manual content review. The checker or crawler will tell you that a page is too short, but not that it fails to answer the searcher’s question. I also keep Google Search Central open as a reference to verify tool recommendations against official guidance. When I need to check content quality or keyword alignment, no automated tool suffices — I read the page myself. My decision rule: use a checker for the first pass, a crawler for the full site audit, and your own brain for anything involving meaning or context.