How to Fix Technical SEO Issues Without a Developer

Step 1: Connect Google Search Console and submit your sitemap

Google Search Console is the free source of truth for how Google sees your site. It holds the Page indexing report, the URL Inspection tool and the Performance report. Add your site as a property first, then check that your sitemap exists by adding "/sitemap.xml" to your domain; seoClarity says a 404 page means you have none.

If you have no sitemap, use a generator or your SEO plugin to create one, then submit it in Search Console. Google's help page suggests submitting a sitemap of your most important pages and filtering the report by it, so you can validate fixes against that smaller set first.

Step 2: Read the Page indexing report

The Page indexing report lists the reasons Google has not indexed some of your pages. Not every reason is an error, so read the reason before you react. "Alternate page with proper canonical tag", for example, means the page is a copy of a page that is indexed, and Google says there is nothing to do.

Prioritise issues whose source is "Website" and whose validation state is "failed" or "not started". Google's own help says you cannot fix issues that originate on Google's side. The table later in this guide explains each common status.

Step 3: Fix crawling and indexing problems

Start with blocks that stop Google reading a page. If a page carries a noindex directive you did not intend, remove the tag or header, confirm with the URL Inspection tool and then request indexing. seoClarity says sites often add noindex during development and forget to remove it at launch.

Check robots.txt next by adding "/robots.txt" to your domain. A file that reads "User-agent: * Disallow: /" blocks everything. Google says robots.txt is not a way to keep a page out of Google, and SE Ranking warns that a noindexed page blocked by robots.txt hides its noindex tag from crawlers. Our robots.txt generator writes a clean file.

For broken pages, Google says a 404 is often fine if you removed the page on purpose. Fix the 404s that you link to or list in your sitemap, and use a 301 redirect if the page moved.

Step 4: Crawl your site for what Search Console misses

Search Console reports how Google sees pages it has found, but a crawler finds problems across every URL on your site. Screaming Frog and SE Ranking's Website Audit are two examples. Look for broken internal links, redirect chains, missing or duplicate titles and meta descriptions, missing H1s and images without alt text.

Do not chase every warning. Screaming Frog says its High, Medium and Low priorities reflect potential impact, not hard rules, and need context. SE Ranking notes that Google's John Mueller has said you can use multiple H1 tags, so it is not technically an issue.

Step 5: Fix speed and mobile problems

Aim for the Core Web Vitals thresholds that web.dev publishes. Largest Contentful Paint (LCP) should be 2.5 seconds or less, Interaction to Next Paint (INP) 200 milliseconds or less and Cumulative Layout Shift (CLS) 0.1 or less. They are measured at the 75th percentile of page loads. Test pages in Google PageSpeed Insights on mobile and desktop, as seoClarity and Surge Online both suggest.

The easy fixes are compressing and resizing images and giving images and videos size attributes so the page reserves space for them, which SE Ranking recommends for layout shift. SE Ranking found LCP above 2.5 seconds on 26.89% of sites in lab tests but only 9.46% in real-world data, so check the real-world figure first. It explains that lab figures come from Lighthouse and real-world figures from Chromium browser data, which is why the two differ. Leave script splitting and server tuning to a developer. Our guide to Core Web Vitals and conversions goes further.

Step 6: Validate your fixes in Search Console

Open the issue's details page and click Validate fix once you have fixed every instance. Google says validation stops if even one instance remains, so fix them all first. It also says validation typically takes up to about two weeks, and sometimes longer, and that you will get email updates.

If validation fails, click See details to find the URL that caused it, fix it and start a new validation. Wait for a cycle to finish before you request another. Fixes do not require validation: Google updates issue counts when it recrawls the affected pages.

Step 7: Repeat on a schedule

Technical problems return whenever you redesign, install a plugin or add pages. Surge Online recommends a technical SEO audit quarterly. A quarterly crawl plus a monthly look at the Page indexing report is a sensible routine for a small site, and our SEO audit checklist shows what to include.

After a redesign or migration, audit straight away. Our website redesign SEO checklist covers what to protect.