Technical SEO Audit: 7-Step Flow

Follow sequentially for a comprehensive audit

1. Crawl Your Website
   Discover every page, status code, and error with a full-site crawl.

2. Check Crawlability
   Verify robots.txt, sitemaps, canonicals, and noindex directives.

3. Analyze On-Page Elements
   Audit title tags, meta descriptions, H1s, and content quality.

4. Assess Core Web Vitals
   Target LCP < 2.5s, CLS < 0.1, INP < 200ms for every page.

5. Audit Links
   Find broken links, redirect chains, and orphan pages.

6. Validate Structured Data
   Check JSON-LD schemas for rich result eligibility.

7. Prioritize & Act
   Sort by impact and effort — fix critical issues first.

CrawlRaven automates steps 1–6 and prioritizes step 7 by estimated SEO impact.

I run technical SEO audits almost weekly — for client sites, for our own properties, and sometimes just to stress-test a new crawler. The process boils down to checking seven things: can search engines actually reach your pages, are they choosing to index them, do the on-page signals make sense, is performance solid, are links healthy, is structured data valid, and is HTTPS configured right. That's it. Seven areas, done properly, and you've covered what matters.

Manually, a full audit takes me somewhere between 2 and 8 hours depending on site size. With an automated crawler like CrawlRaven, I can get through the bulk of it in under 10 minutes — though I still spot-check the output by hand.

Step 1: Crawl your website — discover every page and error

Everything starts with the crawl. You need a complete map of your site — every URL, every status code, every redirect and metadata tag — before you can diagnose anything. Think of it like an X-ray: you can't fix what you can't see.

Fire up CrawlRaven or Screaming Frog, point it at your homepage, and let it follow internal links. That's how Googlebot works too. Your audit crawler should behave the same way.

Here's what I look for in the crawl output:

• HTTP status codes — 200 (OK), 301/302 (redirects), 404 (not found), 500 (server error). Any non-200 page needs investigation.
• Title tags and meta descriptions — check for missing, duplicate, or truncated values across every page.
• H1 tags and header hierarchy — verify each page has exactly one H1 and uses H2–H4 in logical order.
• Canonical URLs — ensure every page declares the correct canonical to avoid duplicate content signals.
• Noindex/nofollow directives — identify pages accidentally blocked from indexation.
• Internal link graph — map which pages link to which, and find orphan pages with zero inbound links.
• Page load time and response size — flag pages with TTFB over 600ms or response bodies over 3MB.
• Image data — file sizes, missing alt text, uncompressed formats (BMP, TIFF).

Step 2: Check crawlability and indexation — unblock your important pages

Two different questions here, and people conflate them all the time. Crawlability: can Google physically reach the page? Indexation: does Google choose to put it in search results?
I've seen a single misplaced robots.txt rule quietly nuke an entire product catalog from the index — nobody noticed for three weeks.

Robots.txt audit

The robots.txt file is the first thing Googlebot reads before crawling anything on your domain. So if there's something wrong with it, everything downstream is affected.

• Verify the file exists at yourdomain.com/robots.txt and returns a 200 status code.
• Check for overly broad Disallow rules.
• Ensure CSS and JavaScript files are not blocked.
• Verify the Sitemap: directive points to your current XML sitemap URL.

XML sitemap audit

Your XML sitemap is basically a priority list you hand to search engines.

• Confirm the sitemap is submitted in Google Search Console.
• Check that every important page is included.
• Remove non-indexable pages from the sitemap.
• Verify lastmod dates are accurate.

Canonical and noindex audit

• Self-referencing canonicals: Every indexable page should have a canonical tag pointing to itself.
• Cross-domain canonicals: Verify cross-domain canonicals point to the original version.

Index coverage check

This is where things get interesting. Pull up Google Search Console's Index Coverage report and compare it against your crawl data.

• Pages you want indexed but aren't: Check for noindex tags, canonical issues, or crawl blocks.
• Pages indexed that shouldn't be: Filter pages, search result pages, and admin URLs that waste crawl budget.

Step 3: Analyze on-page technical elements — fix the content signals

Now we're into the HTML-level stuff — title tags, meta descriptions, heading structure.

Title tag audit

Pull your title tag data from the crawl and check it against Google's title link guidelines.

• Unique per page: No two pages should share the same title tag.
• 50–60 characters: Titles longer than 60 characters get truncated in search results.
• Contains primary keyword: The target keyword should appear naturally.

Meta description audit

• Unique per page: Missing or duplicate meta descriptions mean Google generates its own.
• 120–160 characters: Longer descriptions get truncated.

Heading structure audit

• One H1 per page: The H1 should match the page's primary topic.

Content quality checks

• Thin content: Pages with fewer than 300 words of unique text rarely rank for competitive queries.
• Duplicate content: Use your crawl data to find pages with 85%+ content similarity.

Image optimization

Images are a sneaky performance killer.

• Alt text: Every informational image needs descriptive alt text.
• File size: Compress images to under 200KB where possible.

Step 4: Assess Core Web Vitals — fix performance before Google does it for you

Core Web Vitals are Google's way of saying "we care about user experience."

Step 5: Audit links — eliminate broken paths and orphan pages

Internal links are how search engines navigate your site.

Internal link audit

• Broken internal links (404s): Every link pointing to a non-existent page wastes crawl budget.
• Redirect chains: A link that redirects to another redirect adds latency.

Step 6: Validate structured data — claim your rich results

Schema markup is one of those things that feels optional until you see the difference it makes.

Schema types to implement by page type

• All pages: BreadcrumbList for navigation breadcrumbs.
• Blog posts: Article or BlogPosting with author, date, and headline.

Step 7: Audit security and HTTPS — protect rankings and user trust

HTTPS has been a confirmed ranking signal for years now.

• SSL certificate validity: Check that your certificate is valid, not expired.
• Mixed content: HTTP resources loaded on HTTPS pages trigger browser warnings.

Step 8: Prioritize and create an action plan — fix high-impact issues first

Priority framework

For the content side of things, Surfer SEO is a solid complement to technical crawlers.

Creating your action plan

1. Export your audit findings to a spreadsheet.
2. Tag each issue with effort level — quick fix, moderate, or complex.
3. Start with critical + quick fix items.
4. Schedule complex fixes into your development sprints.
5. Set up monitoring. Run automated crawls weekly or monthly.

Frequently asked questions

What is a technical SEO audit?

A systematic evaluation of every infrastructure factor that affects how search engines crawl, render, index, and rank your website.

How long does a technical SEO audit take?

A thorough manual technical SEO audit takes 2–8 hours depending on site size and complexity. Automated tools can complete the crawl and analysis in under 10 minutes for a 1,000-page site.

What tools do I need for a technical SEO audit?

At minimum, you need a site crawler (CrawlRaven, Screaming Frog, or Sitebulb) and Google Search Console for index coverage data.