A website health check is a review of five things: how fast your site loads, whether Google can find and read it, whether it is secure, how it works on a phone, and whether visitors can tell what you do and how to reach you. Below is what to check in each, with how 1.1 million US business websites actually score, so you know where yours stands. You service your car. You get annual checkups. But when was the last time you checked whether your website is actually healthy? A website health check is a structured review of the things that affect whether your site works, whether people can find it, and whether visitors trust it enough to become customers. Most small business owners skip this, and the problems quietly pile up until traffic drops or leads stop coming in.

What a Website Health Check Covers

A proper health check looks at five areas that directly impact your business:

• •Performance: Is your site fast enough? Google's limit is 2.5 seconds for the main content of a page to appear
• •SEO: Can people find you on Google? Are your pages set up so search engines understand what you offer?
• •Security: Is your site safe for visitors? Do browsers show a padlock or a warning?
• •Mobile experience: Does your site work well on phones, where most of your traffic comes from?
• •Content and conversions: Is it clear what you do and how to take the next step?

Performance: The Speed Check

Speed is the foundation. The benchmark for a healthy website is a Largest Contentful Paint (LCP) under 2.5 seconds: how long it takes for the main content on your page to appear. Most US business sites are inside that line. Of the 383,806 we could measure with real Chrome visitor data, 65% pass all three Core Web Vitals on phones, and the typical site shows its main content in 1.7 seconds. Across all websites worldwide the picture is worse: the HTTP Archive Web Almanac 2025 finds 48% pass on mobile. If yours fails, the usual fixes are compressing images, cutting the scripts that load before your content, and better caching.

SEO: The Findability Check

Your site might be beautiful, but if it's invisible on Google, it's not doing its job. A basic SEO health check looks at whether every page has a unique title tag and meta description, whether your heading structure makes sense, whether images have alt text, and whether your site has a sitemap that search engines can read. Titles and headings are rarely the problem: 99% of US business homepages have a title and 98% have a main heading. The gaps are further down. About 1 in 5 has no meta description, so Google writes its own snippet, 15% have no canonical tag telling Google which version of a page is the real one, and 30% carry no structured data, the code that tells search engines what your business is.

Security: The Trust Check

Security isn't just about preventing hackers. It's about whether visitors feel safe on your site. The baseline is simple: every page should load over HTTPS with a valid certificate, so browsers show a padlock instead of a 'Not secure' warning. Check that the certificate renews automatically (most hosts and website builders do this for free) and that old http:// links redirect to the secure version. Advanced security settings exist too, but they need care to set up and can break parts of a site when done wrong, so they are a job for whoever manages your hosting, not a quick fix.

Mobile: The Real-World Check

Pull up your website on your phone right now. Tap through every page. Try to fill out a form. Try to call the number. If anything is frustrating, your mobile visitors are feeling the same frustration. Google uses the mobile version of your site as the primary version for search rankings, so a poor mobile experience hurts you twice: once with visitors, once with Google.

Content and Conversions: The Business Check

This is the part most tools skip but arguably the most important. Is it immediately clear what your business does? Can a visitor find your phone number or contact form within 5 seconds? Is there a clear call-to-action above the fold? Are trust signals like testimonials, reviews, or client logos visible? A website can be fast, secure, and well-optimized for search and still fail to generate leads if the content doesn't guide visitors to take action. Forms are a good test: 58% of US business homepages have one. If yours doesn't, make sure a phone number or email is easy to find instead.

How Often Should You Check?

Quarterly is a good rhythm for most small businesses. Monthly if you're actively making changes to your site or running marketing campaigns. The key is consistency. Problems compound over time. A broken form that goes unnoticed for three months is three months of lost leads. Website audit tools can run these checks automatically and show you exactly what needs attention, in priority order.