Reviewed by the SEOPointz team · Last reviewed June 2026. We checked every metric and threshold below against Google’s current Core Web Vitals guidance, including the switch from FID to INP. SEOPointz may earn a commission from some links; it never changes what we recommend.
You can write the best article on the internet and still rank nowhere if Google can’t crawl it, index it, or load it fast enough to keep a visitor. That’s the job of technical SEO: the unglamorous backend work that decides whether your content ever gets a fair shot. It isn’t a one-time fix either — sites drift out of compliance as they grow, which is why a quarterly audit beats a heroic annual cleanup. Here’s what to check, in the order that actually moves rankings.
Crawlability: can search engines reach your pages?
Before anything ranks, a crawler has to find it. The two files that govern this are robots.txt, which tells bots where they’re allowed to go, and your XML sitemap, which hands them a clean list of the URLs you want indexed. The most common self-inflicted wound here is a stray Disallow rule blocking a section you actually want crawled, or a sitemap still listing dead and redirected URLs. Strong internal linking does the same job from the inside — a page no other page links to is a page crawlers struggle to discover and rarely prioritise.
Indexability: will Google actually keep them?
Being crawled isn’t the same as being indexed. A noindex meta tag left over from a staging site, conflicting canonical tags, or thin duplicate pages can all keep good content out of the index. Canonical tags matter most here: they tell Google which version of a near-duplicate page is the “real” one, consolidating ranking signals instead of splitting them. Google Search Console’s coverage report is the fastest way to see what’s indexed, what’s excluded, and why — check it before you assume a ranking problem is about content.
Core Web Vitals and site speed
Core Web Vitals remain a confirmed ranking signal, and the bar is specific. Aim for Largest Contentful Paint (LCP) under 2.5 seconds, Cumulative Layout Shift (CLS) below 0.1, and a fast Interaction to Next Paint (INP) — the metric that replaced First Input Delay in March 2024 to measure how responsively your page reacts to clicks and taps. These won’t outrank genuinely better content on their own, but between two similar pages, the faster, more stable one wins. Most gains come from the same handful of fixes: compress and properly size images, cut unnecessary JavaScript, improve server response time, and serve assets through a CDN.
The technical SEO priority checklist
| Area | What to check | Why it matters |
|---|---|---|
| Crawlability | robots.txt, XML sitemap, internal links | Bots can’t rank what they can’t reach |
| Indexability | noindex tags, canonicals, duplicates | Crawled ≠ kept in the index |
| Core Web Vitals | LCP <2.5s, CLS <0.1, fast INP | Confirmed ranking signal and UX |
| Mobile | Responsive layout, tap targets | Google indexes the mobile version |
| Security | HTTPS sitewide, valid certificate | Baseline trust and ranking factor |
| Structured data | Schema markup, valid syntax | Enables rich results in the SERP |
Mobile, HTTPS, and structured data
Google indexes the mobile version of your site, so a desktop layout that breaks on a phone is a ranking problem, not a cosmetic one — check tap target spacing and that nothing important is hidden on small screens. HTTPS is non-negotiable; a missing or expired certificate triggers browser warnings that tank trust and conversions. Structured data (schema markup) won’t lift rankings directly, but valid markup is what makes you eligible for rich results — star ratings, FAQs, recipe cards — that earn more clicks from the same position. Validate it; broken schema is worse than none.
Make it a routine, not a rescue
The sites that stay healthy treat technical SEO as maintenance. Run a full audit at least quarterly, and re-check crawl and index status whenever you migrate, redesign, or restructure URLs — those are the moments that quietly break things. A short recurring checklist catches small issues before they compound into lost traffic you have to win back.
Frequently asked questions
How often should I run a technical SEO audit?
At least quarterly for most sites, plus an immediate check after any migration, redesign, or large URL change. Frequent small audits catch problems before they affect rankings, which is far cheaper than recovering lost traffic later.
Do Core Web Vitals really affect rankings?
Yes — Google has confirmed them as a ranking signal. They rarely override clearly superior content, but when pages are otherwise comparable in quality and authority, the faster and more visually stable page has a measurable edge.
What’s the difference between crawlability and indexability?
Crawlability is whether search engines can reach a page; indexability is whether they choose to store and rank it. A page can be perfectly crawlable yet kept out of the index by a noindex tag, a canonical pointing elsewhere, or duplicate-content issues.
Once the backend is sound, build on it: see how the right WordPress plugins handle much of this automatically in our guide to SEO plugins for WordPress, and round out your toolkit with our roundup of SEO tools and resources to enhance your strategy.
