You have surely heard an SEO consultant talk about Core Web Vitals or schema markup without ever really understanding what it changes for your business. The good news: you do not need to know how to code to make the right decisions. You only need to know what it returns, and what ignoring it costs.
Technical SEO is not your trade, but the results are
Many company directors leave technical SEO to one side, convinced it is reserved for developers. That is an error of reasoning, not of skill. You do not need to configure these things yourself. You need to know they exist, why they matter, and how to check that your supplier is genuinely dealing with them.
Simple rule: if your site takes more than 3 seconds to display its main content on mobile, most of your visitors leave before they even see your offer. Red in the tool means lost customers. Green means go.
Core Web Vitals: what Google measures on your site, in business language
Core Web Vitals are three measurements Google uses to judge whether a site offers a good experience: how fast the main content appears, how responsive it is to a click, and how visually stable it stays while loading. web.dev documents each metric in detail if you want to dig into the technical side. For a first diagnosis that is free and readable without jargon, PageSpeed Insights gives you a score out of 100 and tells you exactly what is slowing your site down. In concrete terms for you: a slow or unstable site sends a visitor away before they read your offer, and Google knows it. If you want to understand how these metrics bear on your ranking, our article Core Web Vitals: the Google metrics that decide your ranking sets out each indicator and its thresholds.
Schema markup: speaking to Google without touching your design
Schema markup is invisible code added behind the scenes of your site to tell Google exactly what each page represents: a product, a customer review, an address, opening hours. Schema.org is the standard vocabulary used by every search engine for that language. Implemented well, it can make your listing appear with review stars, your address or your hours directly in the results, without changing a line of your design. For the detail of putting it in place, our guide schema markup: the structured data that boosts your rankings goes further on the technical side.
Rule worth remembering: if you do not know whether your customer reviews or your opening hours appear in Google, they probably do not. Ask your agency to show you a before and after using Google's free Rich Results Test (search.google.com/test/rich-results).
Why it matters even more when you serve local customers
For a small company selling locally, these two technical levers count double. A slow site discourages a customer in a hurry who is comparing several providers in their town in a few clicks. Missing schema markup means a review, address or opening hours panel that does not appear, while your competitor's does.
- Does my site load its main content in under 2.5 seconds on mobile?
- Do my customer reviews appear with stars in Google results?
- Are my address and my opening hours visible directly in search?
- Does my agency measure these indicators regularly, or only at handover?
- Do I have a clear report on this data, or only verbal promises?
These two technical levers do not replace a real local visibility strategy; they reinforce it. If you want the overview before diving into technical detail, our guide local SEO for small companies: the complete guide to appearing ahead of your local competitors gives you the full method for dominating searches in your catchment area.