What technical SEO covers
Technical SEO is the work that lets search engines crawl, render and index your site properly. It covers site speed and Core Web Vitals, crawl errors, XML sitemaps, robots.txt, canonical tags, duplicate content, structured data, mobile usability, HTTPS and site migrations. If your pages load slowly, don't get indexed or break after a redesign, this is where the problem usually sits.
What to look for in an agency
Ask for a sample audit. A good one ranks issues by impact, names the affected URLs and tells your developer exactly what to change. Check that the agency can work with your platform (WordPress, Shopify, custom builds) and will talk to your developers directly. Be wary of anyone promising rankings, or handing over an automated tool report with no analysis. For stores and listings sites with thousands of pages, ask about log file analysis and crawl budget.
How our scoring helps
We list 25 Petaling Jaya agencies in this category. Our scoring weighs the evidence we can verify, so you can compare them on the same basis. You can read how it works on the methodology page, then see the ranked guide to SEO agencies in Petaling Jaya to build a shortlist of two or three to request audits from.