How to Check Your Website Health with Google Analytics

To check your website health in Google Analytics, compare the last 30 days with the previous 30 across five metrics once a month: users and sessions, engagement rate, average engagement time, traffic sources and conversions. Together they show whether the right people are arriving, staying and getting in touch.

Your website looks fine. The contact form works. The pages load. So why is the phone not ringing?

That gap between a website that exists and a website that earns clients is exactly what Google Analytics shows you. Most service business owners install GA4, glance at the homepage chart once a month, and move on. The data is there. The story it tells gets ignored.

A proper website health check takes about twenty minutes. You don't need to be technical. You need to know which five metrics matter, what healthy looks like, and what to do when the numbers go the wrong way.

This post walks you through it. By the end, you'll be able to open your Google Analytics account, run the same monthly check I run on client websites, and know exactly whether your site is pulling its weight.

Why a regular website health check matters

A website is not a one-off project. It's a marketing asset that needs maintenance, like any other tool in your business. Without regular check-ins, small problems compound.

Maybe your homepage engagement rate has crept down since you added a new banner. Maybe organic traffic has flatlined while paid traffic is doing all the heavy lifting. Maybe your most-visited page isn't the one you'd want a new client to land on.

You won't see any of this from the front end. Your site looks the same to you whether it's converting at 1% or 5%. The data is the only honest feedback loop you've got.

Doing a monthly check stops the slow drift. It's the difference between catching a small issue early and rebuilding a year of lost momentum.

The five Google Analytics metrics that show if your website is working

Google Analytics 4 has hundreds of reports. You don't need most of them. For an established service business, five metrics tell you almost everything you need to know about website health.

Open GA4 and head to Reports in the left navigation. Most of what follows lives in the Engagement and Acquisition sections.

1. Users and sessions: who is actually arriving

Users are the unique humans visiting your site. Sessions are the visits. One person can have several sessions in a month if they keep coming back.

Look at the trend over the last 90 days. Is traffic growing, flat, or dropping? Steady growth is the goal, but flat is fine if your traffic is high quality. A steep drop is the only thing that should make you nervous, and it usually points to a technical issue, an indexing problem, or a campaign that ended.

Don't get hung up on raw numbers. A boutique accounting firm doesn't need 50,000 visitors. It needs 500 of the right ones.

2. Engagement rate: are they staying long enough to care

Engagement rate is GA4's main measure of attention. (Bounce rate is still available in GA4, but it is now simply the inverse of engagement rate.) It measures the percentage of sessions where someone stuck around for at least 10 seconds, viewed a second page, or triggered a conversion event.

As a rough guide from the sites I review, a healthy engagement rate for a service business sits somewhere between 55% and 70%. Below 50% means people are landing and leaving without engaging. That's a homepage problem, a positioning problem, or a traffic source problem.

If engagement is poor, the message above the fold is usually the culprit. Visitors arrive, can't tell within five seconds whether you're for them, and bounce.

3. Average engagement time: are they reading or skimming

This is how long visitors actually spend on your site, not just how long they had a tab open. GA4 only counts time when the page is in the foreground.

For a service business website, an average engagement time of 1 to 2 minutes is solid. Less than 30 seconds suggests visitors aren't finding what they came for. More than 3 minutes can signal great content, or it can signal that visitors are confused and searching for what they need.

Check this number page by page in the Pages and screens report. Your highest-traffic pages should have the longest engagement times. If they don't, that's where to focus your next round of copywriting.

4. Traffic sources: where the right people are coming from

In GA4, go to Acquisition then Traffic acquisition. You'll see traffic broken into channels: Organic Search, Direct, Referral, Organic Social, Paid Search, and so on.

A healthy small service business website usually leans on Organic Search and Direct, with smaller contributions from Referral and Social. If you're heavily reliant on one channel, especially paid, your visibility is fragile.

Compare engagement rate and conversions across channels. A channel with high traffic but low engagement is bringing in the wrong people. A channel with low traffic but high engagement is worth doubling down on.

5. Conversions: are visitors turning into enquiries

A website that gets traffic but no enquiries is a brochure, not a marketing asset. In GA4, conversions are tracked as Key events since the 2024 rename.

You should have at least one key event configured: a contact form submission, a phone click, or an email click. If you don't, set this up before doing anything else. You can't measure what you're not tracking.

In my experience, a reasonable conversion rate for a service business website sits between 2% and 5%. Below 2% and your site is leaking opportunities. Above 5% and you've got a strong setup, but it's worth checking that your form submissions are real enquiries and not spam.

How do I check my website health in Google Analytics?

To check your website health in Google Analytics 4, review five core metrics each month: users and sessions, engagement rate, average engagement time, traffic sources, and key events (conversions). Open the Reports section, compare the last 30 days to the previous 30, and flag any metric that has declined. These five numbers tell you whether the right people are arriving, staying, and taking action.

Not sure if your numbers are healthy? A brand & web audit gives you a recorded walkthrough of your website, an ordered list of what to fix and one section rewritten.

Common red flags hiding in your analytics

Once you know what healthy looks like, the warning signs become obvious. Here's what to watch for during your monthly review.

Engagement rate dropping after a site update. If you tweaked the homepage, changed a key page, or added new traffic sources, check whether engagement held up. A 10% drop is significant.

Most-visited page isn't your best landing page. If a random old blog post is getting the most traffic and your services page is getting almost none, your internal linking and SEO strategy aren't working in your favour.

Mobile engagement much lower than desktop. For most service businesses, a big share of traffic comes from mobile. If your mobile engagement is significantly worse than desktop, the site has a usability issue. Slow load, awkward layout, or buttons that don't work properly are the usual suspects.

Zero conversions tracked. This is the most common issue I see when I audit a site. The business owner thinks the form is working, but the conversion event was never set up, so months of data are missing.

One traffic source doing all the work. If 80% of your traffic comes from one channel, your visibility is one algorithm change away from collapsing.

What healthy website numbers actually look like for service businesses

Benchmarks vary by industry, but for an established service business, these are the rough markers I use when reviewing client websites. They aren't official industry standards, just what healthy tends to look like on the sites I see.

Engagement rate sits between 55% and 70%. Average engagement time sits between 1 and 2 minutes. Conversion rate (form submissions or contact clicks divided by users) sits between 2% and 5%. Organic search delivers at least 30% of total traffic. Mobile and desktop engagement rates stay within 10% of each other.

If your numbers sit comfortably inside those ranges, the site is healthy. If two or more are below, the site has structural issues that won't fix themselves with another blog post.

When the data tells you it's time for a rebuild

Sometimes the analytics tell you the site is past saving. Not every site needs a full rebuild, but here's when the numbers point that way.

If engagement rate has been below 45% for six months, the site is failing the basic job of communicating who you are and what you do. If conversion rate is below 1% despite consistent traffic, the user journey is broken. If your engagement on mobile is poor and load times are over 4 seconds, the technical foundation is the problem.

A new website built on a clear strategy and a fast platform like Webflow can shift these numbers within a few months. When Unfurl EMDR launched a new site built this way, the practice went from no online presence to two enquiries a week within two months. And it doesn't always take a rebuild: for Iconic Balloons, a structural SEO clean-up on its own took daily search impressions from around 20 to more than 100, lifted clicks three to five times and moved their ranking from position 40 to 18.

The takeaway

Your website is one of the few business assets that gives you honest feedback every single day. Google Analytics is how you read it. Twenty minutes a month is enough to spot issues early, double down on what's working, and stop guessing whether your site is earning its keep.

If your numbers tell you something needs to change, that's not a problem. It's information. The next step is acting on it before another year of weak conversion goes by. And if your site is on Webflow and you'd rather have someone looking after it, my Site Success Plans cover ongoing maintenance plus SEO and AEO care.