SEO Checklist for 2025: What to Fix First on Your Site

Most SEO checklists give you 50 or 100 items and no order. That’s the real problem: you don’t know which fix matters most, so you end up tweaking meta tags while Google can’t even index half your pages. This SEO checklist puts the work in the order I’d do it on any site: first make sure Google can find and index your pages, then fix what’s broken, then improve the pages that are already close to ranking, and only then work on new content and links.

You don’t need paid tools for most of it. Google Search Console, a browser and an hour or two will cover the first half of the list.

Why the Order Matters More Than the List

SEO work stacks. A great page that Google can’t index gets zero traffic. A well-indexed site with slow, broken pages loses visitors before they read anything. Good content with no internal links can sit unnoticed for months.

So I sort every task by one question: if this is wrong, does it stop everything after it from working? Indexing problems block everything. Title tweaks block nothing. That’s why they sit at opposite ends of this list.

Here’s the order at a glance:

Step 1: Make Sure Google Can Find and Index Your Pages

When I audit a site, I start with the Page indexing report in Google Search Console. It shows which pages Google has indexed (stored and can show in results) and which it hasn’t, with a reason for each.

If you haven’t set up Search Console yet, do that first. Verify the domain property so it covers every version of your site, including http, https, www and non-www.

What to Check

• Important pages marked “Excluded by noindex tag”. A noindex tag tells Google not to show a page. It often gets left on by mistake after a site launch or redesign.
• Pages blocked by robots.txt. Your robots.txt file tells crawlers which parts of the site to stay out of. One wrong line can block a whole folder. If you’re not sure how the rules work, read our guide to writing robots.txt rules without blocking the wrong pages.
• “Crawled, currently not indexed” and “Discovered, currently not indexed”. A few of these are normal. Lots of them on pages you care about usually means Google doesn’t see enough value in them yet, or can’t reach them through links.
• Your XML sitemap. Submit it in the Sitemaps report. It should list only pages you want indexed: no redirects, no 404s, no noindexed pages.

For any single page, paste its URL into the URL Inspection tool. It tells you if the page is indexed, which canonical Google chose, and when Google last crawled it.

One tip: don’t rely on a site: search to count indexed pages. The number it shows is a rough estimate. Search Console is the real source.

Step 2: Fix Technical Problems That Hurt Users and Crawlers

Once indexing is clean, look for anything broken. These issues don’t always stop indexing, but they waste crawl time, split ranking signals and annoy visitors.

HTTPS and Site Versions

Your site should load on HTTPS, with a valid security certificate. Every other version (http://, www or non-www) should redirect to one main version with a single 301 redirect (a permanent redirect).

Type each version into your browser and see where it lands. I usually see redirect chains here, where one URL hops through two or three others before it arrives. Cut those down to one hop.

Broken Pages and Redirects

• Run a crawl of your site with a crawler tool. Many have a free version that’s enough for small sites.
• Fix internal links that point to 404 pages. Either update the link or redirect the dead URL to the closest matching page.
• Don’t redirect every old URL to the homepage. Google tends to treat that like a 404 anyway, and visitors find it confusing.

Duplicate Pages and Canonical Tags

Duplicate content isn’t a penalty. But when the same page exists at several URLs, Google has to guess which one to show. Filter and sort options on shop pages, tracking parameters and printer versions are the usual causes.

Where you can, redirect duplicates to the main URL. Where you can’t, add a canonical tag (a line of code that tells Google which version is the main one). Then check in URL Inspection that Google agrees with your choice.

Mobile Experience

Google now crawls and indexes sites with its mobile crawler. In practice, your mobile page is the version that counts. If content, links or structured data only show on desktop, Google may not see them.

Open your key pages on a real phone. Check that text is readable without zooming, buttons are easy to tap, and pop-ups don’t cover the content. Google retired its standalone Mobile-Friendly Test in late 2023, so Lighthouse in Chrome is the easiest free check now.

Page Speed and Core Web Vitals

Core Web Vitals are Google’s three measures of how a page feels to use. In March 2024, INP (Interaction to Next Paint) replaced FID as the responsiveness metric. The current “good” targets, measured on real visits, are:

• LCP (Largest Contentful Paint): the main content loads within 2.5 seconds.
• INP: the page responds to taps and clicks within 200 milliseconds.
• CLS (Cumulative Layout Shift): the layout moves no more than 0.1 while loading.

The Web Vitals documentation on web.dev explains how each one is measured. Check the Core Web Vitals report in Search Console to see which page groups fail.

My honest opinion: speed matters, but it’s rarely why a page ranks on page three. Fix pages marked “Poor”. Don’t chase a perfect 100 score in a testing tool while your content needs work. The usual quick wins are compressing large images, removing unused plugins and scripts, and setting width and height on images so the layout doesn’t jump.

Step 3: Boost Pages That Are Already Close to Ranking

This is the step most checklists skip, and in my experience it gives the fastest results. Pages that already sit on page two have proved Google sees them as relevant. They often need a small push, not a rewrite.

1. Open the Performance report in Search Console and set the date range to the last three months.
2. Turn on Impressions, Clicks and Average position, then open the Pages tab.
3. Look for pages with an average position between about 8 and 20 and plenty of impressions.
4. Click a page, then open the Queries tab to see which searches it shows up for.
5. Improve the page for those exact searches: a clearer title, a heading that matches the question, a missing section, or a better answer near the top.

Also look for pages with high impressions and a low click rate. That often means the title and description don’t match what people want. Google builds title links mainly from your <title> tag, so a clear, specific title helps.

When you work on these pages, check the basics on each one too: the title tag, one clear H1, descriptive headings, image alt text and links to related pages.

Step 4: Check That Your Content Is Useful and Current

In March 2024, Google folded its helpful content system into its core ranking systems. Google also ran a core update and a spam update in December 2024. The message hasn’t changed: pages written mainly to rank, rather than to help people, tend to lose ground.

Go through your most important pages and ask these questions honestly:

• Does the page match search intent? Search the main keyword and look at what ranks. If Google shows guides and your page is a sales pitch, or the other way round, the format is wrong.
• Does it answer the question early? People should get the main answer in the first few lines, not after three paragraphs of warm-up.
• Is it still accurate? Check prices, dates, screenshots, laws and product details.
• Does it add something? Your own experience, examples, photos or data make a page worth ranking. A rewrite of the top five results doesn’t.
• Do several pages compete for the same search? Two weak pages on the same topic often do worse than one strong page. Merge them and redirect the weaker URL.

There’s no ideal word count. Google says so directly in its SEO Starter Guide. A short page that fully answers a simple question is fine. A long page padded to hit a target is not.

A word on AI writing tools: Google’s concern is low-value content made at scale to manipulate rankings, however it’s produced. I’d use AI to help with outlines and first drafts, but every page still needs a person who knows the subject to check it and add real detail.

Thin and Outdated Pages

Most older sites carry pages that get no traffic and serve no one: empty tag pages, old event posts, near-identical location pages. For each one, decide to improve it, merge it into a better page, or remove it. I’d only delete pages that have no useful links pointing to them and no reason to exist.

Step 5: Show Who Is Behind the Site

Google’s quality guidelines put a lot of weight on trust. E-E-A-T (experience, expertise, authoritativeness and trust) isn’t a single ranking factor you can switch on. But the signals that support it are easy to add, and they help visitors decide to buy or call.

• A clear About page that says who runs the business and why they’re qualified.
• Easy-to-find contact details: address, phone and email where relevant.
• Author names on articles, linked to short author pages.
• Policies people expect, such as returns, shipping and privacy.

If you serve customers in a local area, your Google Business Profile matters as much as your website for map results. Make sure it’s claimed, verified and complete. Our step-by-step guide to setting up a Google Business Profile walks through each field.

Step 6: Fix Internal Links, Then Earn Backlinks

Internal Links First

Internal links are the links between your own pages. They help Google find pages and understand which ones matter most. They’re also the one type of link you fully control.

• Find orphan pages (pages with no internal links pointing to them). Your crawler can compare its crawl with your sitemap to spot them.
• Link from strong, popular pages to important pages that need a lift.
• Use descriptive anchor text, like “emergency boiler repair prices”, not “click here”.
• Keep key pages within a few clicks of the homepage.

Then Backlinks

Links from other sites still matter. But in 2025, the links that help are the ones you earn because your content or business is worth mentioning. Buying links or swapping them at scale breaks Google’s spam policies.

What I recommend for most small and mid-sized sites:

• Check the Links report in Search Console to see who already links to you.
• Get listed on the real directories and industry associations in your field.
• Reach out to suppliers, partners and local organisations you already work with.
• Create one or two resources people in your industry would actually cite, such as a pricing guide or a useful tool.

In my experience, most sites never need to disavow links. Google is good at ignoring spammy links on its own. I’d only look at that if you’ve built bad links in the past or received a manual action.

Step 7: Set Up Tracking so You Can Measure Results

You can’t tell if your fixes worked without a baseline. Before you change anything, note your clicks, impressions and top pages from Search Console for the last three months.

• Use Google Analytics 4 to see what visitors from search do on your site. Universal Analytics stopped collecting data in 2023, so if you still check old reports, you’re looking at the past. Our GA4 setup guide covers the basics.
• Set up key events in GA4 (its name for conversions since 2024), such as form submissions, calls or purchases.
• Add your site to Bing Webmaster Tools too. It’s free, and Bing’s index also feeds other search tools.
• Keep a simple change log with the date and what you changed. When traffic moves, you’ll know why.

Search changes take time to show. I give most fixes four to eight weeks before I judge them, and longer for new content.

What You Can Skip on Your 2025 SEO Checklist

Part of a good checklist is knowing what not to do. These come up in almost every audit I see, and none of them is worth your time first:

• Meta keywords tag. Google doesn’t use it. Leave it out.
• Hitting a word count. Write as much as the topic needs, then stop.
• FAQ and HowTo markup for rich results. Since 2023, Google shows FAQ rich results only for well-known government and health sites, and it has dropped HowTo rich results. Spend that time on Organization, Product, LocalBusiness or Article markup where it fits.
• Sitemap priority and change frequency. Google ignores both. An accurate lastmod date is the field that helps.
• Perfect tool scores. SEO tool health scores and speed scores are guides, not goals. A site can score 70 and rank well.
• Tricks for AI Overviews. Google’s AI Overviews pull from pages that already rank well and answer questions clearly. The same basics in this list are what help.

How Often to Run Through This Checklist

You don’t need to do everything every month. Here’s the rhythm I use:

• Weekly: a quick look at Search Console for new indexing errors, manual actions or security issues.
• Monthly: review the Performance report for pages close to page one and pages that dropped.
• Every quarter: a full crawl, a content review of key pages and an internal link check.
• After any big change: a redesign, a move to a new platform or a domain change gets the full list straight away.

Conclusion

A useful SEO checklist isn’t about doing everything. It’s about doing the right things in the right order. Make sure Google can index your pages, fix what’s broken, give your nearly-ranking pages a push, keep content honest and current, and then build links and measure the results.

If you only have time for one thing this week, open the Page indexing report in Search Console and check that your most important pages are there. Once that’s clean, move on to the on-page checks for each key page.