A free SEO checker scans your website in a few seconds and hands back a score with a list of warnings. That report can be genuinely useful, but only if you know which parts describe your site and which parts are guesswork. Here is a plain-English look at what these tools measure, what they cannot know, and what to do with the list once you have it.
A free tool loads your pages the same way a browser does and reads the code. Anything written into that code can be checked reliably, so this part of the report is worth trusting.
Speed scores are the part owners worry about most, and often the part they misread. A tool usually tests one page, on one connection, at one moment. Run it twice and the number can move.
Google publishes thresholds worth aiming at: Largest Contentful Paint at 2.5 seconds or less is considered good and over 4 seconds is poor, Cumulative Layout Shift at 0.1 or below, and Interaction to Next Paint at 200 milliseconds or below. Use pagespeed.web.dev to see these for your own pages, and test your home page plus one service page rather than the home page alone.
A scanner reads your site. It does not read your market, and it cannot see most of what decides whether someone picks your business.
Scores are a summary invented by the tool, not a grade from a search engine. Two checkers can score the same page very differently because they weigh issues differently.
Ignore the number and read the list. Sort it into three buckets: things that break the customer experience, things that confuse search engines, and things that are cosmetic. Fix the first bucket first.
Pick a handful of fixes you can finish in one sitting. Write a unique title for each important page that names the service and the town you serve. Rewrite meta descriptions so they read like a sentence you would say to a customer on the phone.
Then check the things no scanner can confirm: that your phone number is tappable, your hours are current, your address matches what you show on your business profile, and a visitor can tell within seconds what you do and where you do it.
Use a free checker as a starting map, not a verdict. After the scan, open your own site on your phone, away from your office wifi, and try to book or call yourself.
If you want a simple second opinion on your pages, you can run the free website check on this site and compare its notes with what you found by hand.
This guide was written with AI help and checked by an automatic honesty filter (no made-up numbers, no ranking promises). It is general information, not professional advice.
Run the free website check: it tests your homepage on a phone and lists what's measurably slowing it down or confusing visitors.
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