Technical SEO

How to Find and Fix Technical SEO Issues on Your Website

Find and fix Technical SEO issues by checking whether search engines can discover, crawl, render, and index your most valuable pages, then correcting conflicting status codes, robots directives, canonical signals, internal links, sitemaps, redirects, and duplicate URLs.

How to find and fix Technical SEO issues on your website
Quick overview

Summary

  • Inspect high-value pages first and confirm that they return 200, allow crawling and indexing, use the intended canonical URL, and can be reached through internal links.
  • Identify technical blockers such as noindex , robots.txt restrictions, server errors, broken links, redirect chains, sitemap inconsistencies, orphan pages, and duplicate URLs.
  • Prioritize fixes by business value, severity, scale, and implementation risk, then recrawl the affected pages and validate the changes in Google Search Console.
Technical SEO issue guides

Continue with the right troubleshooting guide

Your website can look completely normal to visitors while quietly sending Google in circles , pointing it to the wrong URLs, or telling it not to index your best pages .

Technical SEO problems are polite like that: they rarely announce themselves. They simply reduce visibility in the background and wait for someone to notice.

Search engines need to discover, crawl, process, and index your pages correctly. A problem at any stage can prevent important content from appearing in search results.

To find and fix Technical SEO issues, begin with the pages that matter most to your business . Check their indexing status, HTTP responses, crawl access, robots directives, canonical tags, internal links, XML sitemap inclusion, redirects, and duplicate versions. Prioritize issues that block valuable pages or affect many URLs, implement the appropriate changes, and validate the result with a fresh crawl and Google Search Console.

If the cause is unclear, the fix has implementation risk, or valuable pages are affected, review when technical SEO issues need specialist help before making larger changes.

What Should You Check First in a Technical SEO Audit?

Start with the pages that have the greatest business value rather than auditing every URL with equal urgency.

Priority pages may include:

  • Main service pages
  • Product and category pages
  • Lead-generation landing pages
  • Important location pages
  • High-performing blog articles
  • Pages targeting valuable commercial searches

For each page, check:

  • Whether Google has indexed it
  • Whether it returns a successful 200 response
  • Whether crawling or indexing is blocked
  • Whether its canonical tag points to the intended URL
  • Whether relevant pages link to it
  • Whether its canonical URL appears in the XML sitemap
  • Whether it redirects or duplicates another page

Starting with these pages is more useful than chasing every warning a crawler can produce. Given enough URLs, most audit tools will eventually find something to be unhappy about.

A missing image alt attribute on an old post is usually less urgent than an unintended noindex directive on a primary service page.

How Can You Check Whether Google Has Indexed a Page?

A quick Google search using the site: operator may indicate whether a URL appears in search:

site:yourdomain.com/page-url/

However, this is not a complete or definitive indexing test.

The more reliable method is to inspect the exact URL in Google Search Console. URL Inspection can show whether:

  • The URL is indexed
  • Google knows about the URL but has not indexed it
  • Crawling is blocked
  • Indexing is prevented by noindex
  • The URL redirects
  • Google selected another canonical URL
  • Google encountered an error while fetching the page
Indexability checks for determining whether an important webpage can appear in Google Search
Indexability checks help reveal why an important page may be excluded even when the URL exists and loads for visitors.

When an important URL is absent from search, first investigate the common reasons why Google may not index a page .

Do not treat Request Indexing as a repair button. It asks Google to check the page again, but it does not remove a crawl block, correct a canonical, cancel a redirect, or improve a low-value duplicate page.

For a more detailed workflow, use the Page Indexing report and URL Inspection tool together to diagnose indexing issues in Google Search Console .

How Can You Check Whether Search Engines Can Crawl a Page?

Crawlability determines whether a search engine can access a page and its essential resources.

Check whether important URLs are being restricted by:

  • robots.txt
  • Login or authentication requirements
  • Firewall or CDN rules
  • Website security settings
  • Server errors
  • Incorrect CMS settings
  • Unavailable JavaScript or CSS files

You should also inspect the HTTP response.

An important live page should normally return:

200 OK

Other responses may indicate a different condition:

  • 301: Permanently redirected
  • 302: Temporarily redirected
  • 404: Page not found
  • 410: Page intentionally removed
  • 500: Internal server error
  • 503: Service temporarily unavailable
Crawlability checks covering robots.txt, HTTP status codes, server access, and essential page resources
Crawlability checks identify barriers that prevent search engines from accessing important pages and essential resources.

A redirecting URL is not normally indexed as a separate page. Google generally evaluates the destination instead.

A crawler such as Screaming Frog can identify response-code and crawlability problems across many URLs. Google Search Console can then help investigate important pages individually.

The fact that a page opens in your own browser does not prove that a search-engine crawler can access the same content and resources.

How Do You Find Noindex and Canonical Problems?

A page can be crawlable but still be ineligible for indexing.

One common cause is an unintended noindex directive:

<meta name="robots" content="noindex">

This tells supported search engines not to include the page in their indexes.

Accidental noindex directives often appear after:

  • A redesign
  • A migration
  • A plugin configuration change
  • A staging website going live
  • A copied page template
  • A CMS visibility setting change

If the page should appear in search, remove the directive and confirm that Google can crawl the updated version.

You should also review the canonical tag:

<link rel="canonical" href="https://www.example.com/preferred-page/">

A canonical tag identifies the URL you consider the preferred version .

If an important page points to another URL as canonical, Google may index that alternative instead. The page may effectively be directing Google toward the exit.

Incorrect canonical signal pointing Google away from the intended webpage
An incorrect canonical can direct Google toward another URL and cause the original page to be excluded.

For consistent canonical signals:

  • Point the canonical tag to the preferred URL
  • Use the preferred URL in internal links
  • Include the preferred URL in the XML sitemap
  • Ensure redirects support the same version
  • Consolidate unnecessary duplicate URLs
Consistent canonical signals from canonical tags, internal links, XML sitemaps, and redirects
Canonical tags, internal links, sitemap entries, and redirects should support the same preferred URL.

Conflicting signals can cause Google to select a different canonical from the one you intended.

Google commonly discovers URLs through links from pages it already knows.

An important page may be difficult to discover or appear unimportant if it:

  • Has no internal links
  • Is buried deep within the website
  • Is linked only from an XML sitemap
  • Uses vague anchor text
  • Is disconnected from relevant service or category pages
  • Can only be reached through an internal search form

A URL with no internal links is commonly called an orphan page. It exists, but the rest of the website behaves as though it has never met it.

Add relevant links from:

  • Related service pages
  • Category or topic hubs
  • Blog articles
  • Navigation
  • Breadcrumbs
  • Other authoritative pages on your website

Anchor text should help readers understand the destination.

For example:

technical SEO audit service

is more informative than:

click here

Important pages should also fit within a logical website hierarchy. There is no universal rule requiring every URL to be exactly three clicks from the homepage, but valuable pages should be easy for users and crawlers to reach.

NOT GETTING ENOUGH TRAFFIC OR LEADS?

Find what is holding your website back.

Get a focused SEO review that identifies the issues, missed opportunities, and priority fixes.

Request an SEO Review View Services

What Should an XML Sitemap Contain?

An XML sitemap should normally contain the canonical, indexable URLs that you want search engines to discover.

Include URLs that are:

  • Live
  • Canonical
  • Indexable
  • Returning 200
  • Valuable enough to appear in search

Remove URLs that are:

  • Redirected
  • Broken
  • Marked noindex
  • Blocked from crawling
  • Duplicated
  • Non-canonical
  • Part of a staging environment
  • Generated only for filtering, tracking, or internal search

Sitemap inclusion does not guarantee indexing. Adding a URL to a sitemap is not a guaranteed admission ticket to Google’s index.

The URL must still be crawlable, indexable, useful, and supported by consistent canonical and internal-link signals.

Broken internal links can prevent users and search engines from reaching important content.

Review links pointing to:

  • Deleted pages
  • Old URLs
  • Redirecting URLs
  • Incorrect HTTP versions
  • Outdated domain versions
  • Misspelled URLs

Whenever possible, update an internal link so it points directly to the final destination.

Instead of:

Page A → Old URL → New URL

use:

Page A → New URL

A redirect chain may look like:

Old URL → Second URL → Final URL

A cleaner implementation is:

Old URL → Final URL

Search engines and visitors generally do not need a sightseeing tour through several old URLs before reaching the current page.

Redirect loops are more serious because they prevent the destination from loading at all.

Duplicate URLs may also be created through:

  • HTTP and HTTPS
  • WWW and non-WWW
  • Trailing-slash variations
  • Uppercase and lowercase paths
  • Tracking parameters
  • Sorting and filtering URLs
  • Duplicate category paths

Use redirects or canonical tags to consolidate these versions.

Duplicate content does not automatically cause a Google penalty, but unnecessary URL variations can weaken canonical clarity and make crawling less efficient.

How Should You Prioritize Technical SEO Issues?

Prioritize issues according to:

  • Business value of the affected page
  • Severity
  • Number of affected URLs
  • Likely organic impact
  • Implementation effort
  • Risk of making the change
Impact-based triage

Four practical priority levels

Critical issues

These directly block important pages or large website sections.

Examples include:

  • Important pages marked noindex
  • Main directories blocked in robots.txt
  • Server errors affecting commercial pages
  • Redirect loops
  • Staging settings left on the live website
  • Site-wide incorrect canonical tags
High-priority issues

These weaken discovery, consolidation, or important templates.

Examples include:

  • Important orphan pages
  • Broken internal links
  • Incorrect redirects
  • Conflicting canonical signals
  • Sitemap problems affecting valuable URLs
  • Uncontrolled duplicate versions
Medium-priority issues

These affect crawl efficiency or usability without completely blocking search visibility.

Examples include:

  • Long redirect chains
  • Important pages buried too deeply
  • Weak anchor text
  • Inconsistent internal linking
  • Minor rendering problems
Low-priority issues

These have limited likely business or organic impact.

Examples include:

  • Minor image warnings
  • Metadata inconsistencies on low-value pages
  • Old redirects that still work
  • Warnings affecting URLs that should not be indexed

A perfect audit score may look satisfying, but it has limited value if a primary service page remains blocked, orphaned, or canonicalized somewhere else.

Always ask:

  • Which pages are affected?
  • Should those pages be indexed?
  • Does the issue block crawling, indexing, or canonical consolidation?
  • Is there evidence of traffic or conversion impact?
  • What is the risk of implementing the change?
Technical SEO issue process from discovery and diagnosis through prioritization, implementation, and validation
A reliable Technical SEO workflow moves from discovery and diagnosis to prioritization, implementation, and validation.

How Can You Confirm That a Technical SEO Fix Worked?

A Technical SEO fix is successful when the original technical condition changes —not merely when an audit score improves.

After implementing a change:

  • Crawl the affected page again.
  • Confirm the intended HTTP response.
  • Check the robots directive.
  • Verify the canonical tag.
  • Test the internal links.
  • Inspect the URL in Google Search Console.
  • Run a live URL test.
  • Monitor indexing and search performance.

Examples of successful validation include:

  • A blocked page is now crawlable
  • An unintended noindex has been removed
  • A redirect chain now uses one direct redirect
  • A canonical now points to the preferred URL
  • An orphan page now receives relevant internal links
  • A broken URL now returns the intended response
  • The sitemap contains only canonical, indexable URLs

Some changes may be processed within days. Others may take several weeks.

Confirm the technical outcome before expecting an immediate ranking change. Rankings and traffic also depend on relevance, content quality, competition, authority, and search demand.

When Should You Get Professional Technical SEO Support?

Some problems can be corrected through a CMS or SEO plugin. Others require crawler analysis, Google Search Console evidence, template checks, development work, or post-fix validation across many URLs.

When the cause is unclear, affects important templates, or creates conflicting recommendations, Technical SEO audit and implementation support can turn the findings into a prioritized fix plan and verify that the intended changes work correctly.

Page-level review

Technical SEO Checklist for Important Pages

Discovery

  • Is the page linked from relevant pages?
  • Is it included in the correct sitemap?
  • Can users reach it through normal navigation?

Crawling

  • Is it allowed by robots.txt ?
  • Does it return the intended response?
  • Can search engines access its essential resources?

Indexing

  • Is it free from an unintended noindex ?
  • Does Search Console report an indexing issue?
  • Is the page useful enough to appear independently?

Canonicalization

  • Does the canonical point to the intended URL?
  • Do internal links use that same version?
  • Does the sitemap contain the canonical URL?
  • Are duplicate versions redirected or consolidated?

Validation

  • Has the page been recrawled?
  • Does the live URL test show the intended setup?
  • Has Google processed the updated version?
Common questions

Frequently Asked Questions About Technical SEO Issues

How can I check my website for technical SEO issues?

Start with the pages that matter most to your business. Check whether each page returns a successful 200 response, allows crawling and indexing, uses the intended canonical URL, receives relevant internal links, appears correctly in the XML sitemap, and avoids unnecessary redirects or duplicate versions.

What are the most common Technical SEO issues?

Common Technical SEO issues include unintended noindex directives, robots.txt restrictions, broken internal links, orphan pages, redirect chains, incorrect canonical tags, duplicate URLs, XML sitemap errors, and 404, 500, or 503 responses. The most important issues are those that prevent valuable pages from being discovered, crawled, indexed, or consolidated correctly.

Which Technical SEO problems should I fix first?

Fix issues that block important pages or affect large parts of the website first. Unintended noindex directives, server errors, redirect loops, robots.txt blocks, and site-wide canonical problems normally deserve attention before minor warnings on low-value pages.

What technical issues can prevent Google from crawling or indexing a page?

Google may be unable to crawl a page because of robots.txt restrictions, authentication, firewall rules, unavailable resources, or server errors. A crawlable page may still remain unindexed because of noindex , redirects, duplicate content, conflicting canonical signals, weak internal discovery, or limited independent value.

How can I tell whether a Technical SEO audit warning is important?

Check which URLs are affected, whether those pages should appear in search, how many pages share the issue, and whether the condition blocks crawling, indexing, canonicalization, or user access. A warning is more important when it affects valuable pages, an entire template, or a large group of URLs.

Which tools can help identify Technical SEO problems?

Google Search Console helps investigate indexing, crawl access, canonical selection, and individual URLs. A crawler such as Screaming Frog can identify status codes, broken links, redirects, canonicals, directives, and orphan-page signals across the website, while browser tools, HTTP checkers, CMS settings, and server logs provide additional evidence.

How do I confirm that a Technical SEO fix worked?

Recrawl the affected URLs and verify that the original technical condition has changed. Confirm the HTTP response, robots directive, canonical tag, internal links, sitemap entry, and live URL result in Google Search Console, then monitor whether Google processes the updated version.

Final Thoughts

Finding Technical SEO issues is not about achieving a perfect audit score.

The objective is to ensure that search engines can discover, crawl, process, understand, and index the pages that matter to your business.

Start with your highest-value pages. Review their indexing status, crawlability, response codes, robots directives, canonical tags, internal links, sitemap inclusion, redirects, and duplicate versions.

Then prioritize the issues that affect important pages, large website sections, traffic, or conversions.

A website does not need to be technically perfect. Its important pages do need to be accessible, indexable, logically organized, and supported by clear, consistent signals .

Have a technical SEO issue that needs a clear diagnosis and fix?

Clear diagnosis, practical fixes, and excellent communication.

Verified Upwork feedback
Project enquiry

Request a Project Review

You do not need to prepare a formal brief. Share a few details and I’ll review the enquiry personally.

Not sure which platform you use? Write “I’m not sure.”
For example: important pages are not being indexed, traffic has declined, the website is being migrated, or you need a Technical SEO audit.

Your information will only be used to review and respond to your enquiry.

Thank you—your request has been sent. I’ll review the details and respond as soon as possible.

Prefer the full contact page? View contact options.