SEO audit: find what's holding your rankings back

An SEO audit is a methodical review of a website to assess how well it can rank in search engines. It looks at the technical infrastructure, content quality, inbound links and visitor experience. The result is a clear picture of what works, what's blocking you, and what you haven't yet taken advantage of.

Checking a few title tags or testing the speed of one page isn't enough. An audit combines three kinds of data: technical (crawling, indexing, performance), editorial (content relevance, topic coverage, search intent) and authority (inbound links, referring domains). Bringing them together is what reveals the real levers, which often stay hidden when each dimension is reviewed on its own.

Search results keep changing: Google regularly updates its ranking systems and, for some queries, shows AI-generated answers (AI Overviews). For any website that depends on organic traffic, a regular audit catches problems before they cost you rankings.

Google says it relies on many signals to rank pages, and it releases updates regularly, including several core updates a year that can noticeably shift rankings. What worked a few months ago may no longer be enough. A regular audit checks that your website still follows Google's guidelines and isn't losing ground to competitors who keep optimizing.

AI Overviews change things too: for some queries, Google shows a generated answer and cites sources. There's no guarantee of being cited, but a website that is easy to crawl, well structured and clearly written starts with an advantage. The audit flags the technical and editorial obstacles that could keep you out.

Signals that call for an audit right away

Some situations call for a prompt audit. A sharp, sustained drop in organic traffic can point to a technical problem or the effect of a Google update; as a rough benchmark, a drop of more than 15% over two weeks deserves a closer look, allowing for your business's seasonality. A redesign, a domain migration or a change of hosting provider also warrants a check to make sure nothing broke along the way. And if competitors are gradually overtaking you on your key keywords despite your content efforts, technical issues may be holding you back.

A complete audit covers four dimensions. Together, they give an overall view of the website's health and its potential in search results.

1. The technical audit: the foundations

If Google's bots can't crawl or index your website properly, the rest of your work has little effect. This phase reviews crawling (robots.txt, XML sitemap, URL structure), performance (Core Web Vitals: LCP, INP, CLS), mobile compatibility, HTTP status codes (404, 301, 302), JavaScript rendering, HTTPS and canonical tags. A technically sound website is one that Google can crawl, understand and index without difficulty.

2. The semantic audit: content relevance

Content remains central to ranking. The semantic audit checks that each page meets the search intent it targets. It assesses topic coverage, cannibalization (several pages competing for the same keyword), duplicate content, heading structure (H1 to H6), meta tags and writing quality. The goal: every page has a clear role and targets a distinct intent.

3. The authority audit: external signals

Links from other websites remain an important signal for Google. The authority audit reviews your link profile: number of referring domains, quality of those domains, anchor text diversity, pace of acquisition, share of nofollow links, and questionable links that could cause problems. It's usefully complemented by a comparison with the websites that rank above you.

4. The UX audit: the visitor experience

A useful, pleasant website serves both visitors and SEO. The UX audit draws on your analytics data (engagement, pages per visit, conversions) and reviews mobile usability (tap targets, readability), navigation clarity and the consistency of the user journey. A fast, clear website also tends to convert better.

Zerkado automates crawling your website and checking its pages (51 issue types). Where a manual audit often takes several days of data gathering, the tool does that work and leaves the analysis to you. Issues are ranked by severity, and each type links to its fix guide.

What Zerkado checks automatically

Each family of checks counts toward the overall SEO score, out of 100. An issue can only take away its own family's points, in proportion to the pages affected: a single flaw can't wipe out the whole score. Each issue type has its fix guide: who handles it, how to do it, and how much effort to expect.

The SEO audit tool market includes established players such as Semrush, Ahrefs, Screaming Frog and SEOptimer, each with its own strengths. Their figures and prices change often, so rather than reproduce them here, here are the criteria to review before you choose, and how Zerkado handles each one.

What sets Zerkado apart is less the number of checks than what comes after the audit: each issue arrives with its severity, the pages affected and a fix guide that a non-specialist can follow. The audit also connects to rank tracking, backlinks and client reports in the same tool.

A data-heavy audit report can be confusing, even for an experienced SEO. The key is to separate what's critical (blocks indexing), what's important (affects rankings) and what's secondary (marginal improvements).

The SEO score: an indicator, not a goal

Zerkado's 0–100 score sums up the state of the website and lets you track progress from one crawl to the next. It shouldn't become an end in itself: a website scoring 75 can outrank one scoring 90 if its content better matches search intent. The score helps you spot where to improve.

The order of fixes

Zerkado ranks issues into three severity levels. Critical: they block indexing or severely degrade the experience, and come first. Warning: they weigh on rankings without blocking them, and make up your short-term plan. Information: optimizations that, taken together, can make the difference on competitive queries.

An audit that sits in a drawer, or boils down to a long, unordered list, is useless. Its value lies in the action plan that follows: clear, prioritized, and shared among the right people.

The impact/effort matrix

Rank each recommendation on two axes: its expected impact on organic traffic and the effort it takes (time, skills, cost). Four categories emerge to organize your roadmap.

In Zerkado, each issue is listed with its severity, the number of pages affected and its fix guide. You track its status (open, in progress, fixed, ignored) and follow how your rankings evolve with rank tracking.

AI doesn't replace crawling: the bot is what finds the issues. AI helps elsewhere: explaining a problem in the context of your page, drafting a fix, and saving time on repetitive tasks.

What AI does in the Zerkado audit

Three actions are available on demand, billed in AI credits at the price shown before you start: issue diagnosis, which explains the likely cause on your website; page analysis, which identifies the page's strengths and weaknesses and offers content and technical advice; and batch rewriting of titles and meta descriptions that are missing or the wrong length, with a preview to approve before anything is applied.

What AI doesn't do: it applies nothing to your website without your approval, and it doesn't predict how much traffic you'll gain. Its proposals are suggestions to review.