Technical SEO Audit Checklist: 15 Issues Silently Killing Your Rankings

Great content on a technically broken website rarely ranks. Search engines need to crawl, render and index a page correctly before your writing even gets evaluated. Run through this checklist before spending another rupee on content.

Crawling and indexing

  1. robots.txt blocking important pages, a single misplaced Disallow line can hide your whole site from Google.
  2. Missing or broken XML sitemap, submit it in Google Search Console and keep it updated automatically.
  3. Orphan pages with no internal links pointing to them, Google struggles to find and rank pages nobody links to.
  4. Duplicate content across similar pages, category filters and print versions confuse search engines about which page to rank.
  5. Incorrect canonical tags pointing to the wrong URL, or missing entirely on pages with parameters.

Site speed and Core Web Vitals

  1. Slow LCP (Largest Contentful Paint), anything over 2.5 seconds hurts both rankings and conversions.
  2. Poor INP (Interaction to Next Paint), heavy JavaScript that makes buttons feel laggy after a click.
  3. Layout shift (CLS) from images or ads without reserved space, causing content to jump while loading.
  4. Unoptimized images, serving 4 MB photos when a compressed 150 KB WebP would look identical.

Want This Done For You?

WebsNP runs technical and on-page SEO campaigns for businesses in Nepal and worldwide, audits, keyword research, on-page fixes, content, and AEO structuring for AI search. Plans start at $500/year.

See SEO Packages & Pricing

Mobile and structure

  1. Not mobile-friendly, Google indexes the mobile version of your site first, always test on a phone.
  2. Broken internal links (404s) that waste crawl budget and frustrate visitors.
  3. Messy URL structure, deeply nested or parameter-heavy URLs are harder to crawl and to trust.
  4. Missing HTTPS or mixed content warnings, an insecure padlock icon costs both trust and rankings.

Metadata and structured data

  1. Duplicate or missing title tags and meta descriptions across multiple pages.
  2. No structured data (schema markup), without it, search engines and AI tools have to guess what your page is about instead of being told directly.

How to actually run this audit

Google Search Console is free and shows most of these issues directly under Coverage and Core Web Vitals reports. PageSpeed Insights gives a detailed speed breakdown per URL. For a full site, tools like Screaming Frog crawl every page and flag broken links, duplicate tags and redirect chains in minutes. If this list feels overwhelming, a professional audit usually pays for itself within the first month of fixed rankings.