Free SEO Audit
Advanced SEO Audit Tool

Full SEO Audit in
Seconds, Not Hours

Get a deep, professional-grade audit: on-page signals, technical issues, schema, social tags, content quality, performance — everything an SEO expert checks, automated.

No login needed 30+ SEO signals checked 100% free, forever
Fetching page…
Fetching page HTML
Parsing DOM structure
Auditing on-page signals
Checking technical factors
Calculating SEO score
SCORE
0 Issues
0 Warnings
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How It Works

Run a Full SEO Audit in 3 Steps

No setup, no account, no Chrome extension. Paste a URL, get a complete SEO diagnosis in seconds.

1

Enter Any Page URL

Paste the full URL of any page you want to analyse — your homepage, a blog post, a landing page, or a competitor's page. Include https:// for best results, or we'll add it for you automatically.

2

Audit Runs Instantly

Our server fetches the live page and analyses over 30 SEO signals in parallel — on-page elements, technical factors, schema markup, social tags, content quality, and performance signals. No browser extension or crawl delay required.

3

Fix Issues, Re-Check, Rank

Every finding comes with a plain-English explanation and a specific fix. Export the full report as JSON, copy it to your clipboard, and use the linked specialist tools to resolve each issue — then re-audit to confirm the improvement.

What We Check

30+ SEO Signals Audited Automatically

Every signal that matters to Google — checked, scored, and explained in plain English.

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On-Page SEO

Title tag length and quality, meta description presence and length, H1–H6 heading structure, keyword signals, and image ALT text completeness — the foundational signals Google reads first.

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Technical SEO

Canonical tag validation, robots meta and X-Robots-Tag headers, HTTPS detection, HTML lang attribute, redirect detection, URL structure signals, inline script count, and iframe usage.

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Mobile & Core Web Vitals

Viewport meta tag presence, image dimension attributes (CLS prevention), and server response time (TTFB) — the signals behind Google's mobile-first indexing and Core Web Vitals scores.

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Schema Markup

Detects all JSON-LD structured data blocks, identifies schema types present (Article, FAQPage, BreadcrumbList, etc.), and renders the raw markup so you can validate it against Google's Rich Results guidelines.

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Social & Open Graph

Validates og:title, og:description, og:image, and Twitter Card tags. Missing OG tags mean your pages look broken when shared on LinkedIn, Facebook, WhatsApp, and Twitter/X — directly hurting referral traffic.

Performance Signals

Measures server response time (TTFB), HTML page size, inline script count, and image dimension declarations. Each one feeds into Google's page experience signals and Core Web Vitals scoring.

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Content Quality

Word count analysis to detect thin content, heading hierarchy depth, and content structure signals. Google's Helpful Content system rewards pages with depth and penalises low-effort, thin pages.

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International SEO

Detects hreflang tags for international and multilingual targeting, HTML lang attribute for language declaration, and flags pages missing proper internationalisation signals.

Complete Guide

What Is an SEO Audit — And Why Every Page Needs One

An SEO audit is a systematic review of every factor that affects how a page appears, ranks, and performs in search engines. It's not a one-time task — it's how serious SEOs diagnose ranking problems before they compound.

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What Is an SEO Audit?

An SEO audit examines every on-page, technical, and content signal that Google uses to evaluate a page. It identifies what's working, what's broken, and what's missing — then prioritises fixes by impact.

Most ranking problems trace back to a small number of fixable issues: missing title tags, broken canonical tags, noindex on pages that should be indexed, missing schema, slow server response times. An audit surfaces all of them at once so you can fix in order of priority rather than guessing.

Professional SEOs run audits on every important page before publishing, after any site migration, after a core algorithm update, and any time a page drops in rankings. Our tool makes that process instant — no spreadsheet, no Chrome extensions, no paid subscription.

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Title Tags: Your Most Valuable On-Page Element

The title tag is the single most important on-page SEO element. It tells Google what a page is about, appears as the blue link in search results, and is the primary factor in click-through rate. A well-written title with the target keyword near the front, kept between 50–60 characters, consistently outperforms pages with missing, duplicate, or truncated titles.

Our audit checks title presence, character length, and SERP truncation risk. A title over 60 characters gets cut off by Google with an ellipsis — damaging CTR and keyword visibility. A title under 30 characters signals thin content. Getting your title right is the fastest single fix most pages can make.

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Meta Descriptions: The CTR Lever Google Ignores (and You Shouldn't)

Google officially says meta descriptions are not a ranking factor. That's true — but they are a CTR factor, and CTR indirectly influences rankings through user engagement signals. A well-written meta description between 120–158 characters that promises value and includes the target keyword can meaningfully increase the percentage of searchers who click your result over a competitor's.

When a meta description is missing, Google auto-generates one by pulling random text from the page — usually an awkward fragment that reduces CTR. Writing your own description is always better than letting Google guess.

H1

Heading Structure: How Google Understands Your Content

The H1–H6 heading hierarchy is how Google parses the structure and topic coverage of a page. A single, keyword-rich H1 at the top tells Google the primary topic. H2 subheadings tell it the subtopics. H3s and below add depth and specificity. This structure directly feeds into Google's understanding of topical authority.

Common heading mistakes our audit catches: pages with no H1 (Google has to guess the topic), pages with multiple H1s (dilutes the primary signal), pages with no H2s on long content (flat structure that looks thin to crawlers), and heading text that doesn't include target keywords.

The heading map tab in our tool visualises your full heading tree so you can spot hierarchy gaps at a glance — a feature even paid tools often bury.

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Canonical Tags: Preventing the Duplicate Content Trap

A canonical tag tells Google which version of a URL is the "official" one. Without it, Google may encounter the same content at multiple URLs — with and without trailing slash, with and without www, with different UTM parameters — and split ranking signals across them instead of concentrating them on one.

Our audit checks three things: whether a canonical exists, whether it's self-referencing (correct for most pages), and whether it points to a different URL (which may be intentional or may be a misconfiguration costing you rankings on that page). A wrong canonical is one of the most common and impactful technical SEO mistakes on the web.

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Robots Meta & Noindex: Is Your Page Actually Indexable?

A single <meta name="robots" content="noindex"> tag removes a page from Google entirely — no rankings, no traffic, no impressions. It sounds obvious that you'd know if this was present, but it's one of the most common silent traffic killers we find in audits. It gets added accidentally during development, staging migration, or plugin misconfiguration and never removed.

Our tool checks both the HTML meta robots tag and the X-Robots-Tag HTTP header — a separate mechanism that many tools miss entirely. We also flag nofollow in the robots meta, which blocks PageRank from flowing to other pages through internal links. If your page has noindex, it doesn't matter how good the content is — it cannot rank.

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Schema Markup: Unlocking Rich Results in Google

Schema markup (structured data in JSON-LD format) gives Google explicit, machine-readable information about your page's content. Add Article schema and Google knows it's an article. Add FAQPage schema and Google may show your answers directly in the SERP as expandable accordion items. Add BreadcrumbList and your URL gets replaced by a clean breadcrumb path in the results.

Rich results consistently earn higher CTR than standard results — sometimes 20–30% higher for the same ranking position. Pages with no schema are leaving rich result opportunities on the table. Our audit detects all JSON-LD blocks, identifies their types, and shows the raw markup so you can validate it against Google's requirements — then link directly to our Schema Generator to build what's missing.

Page Speed & Core Web Vitals: The Ranking Signal You Can Feel

Since Google's 2021 Page Experience update, page speed is an official ranking signal. Specifically, Core Web Vitals — Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP) — are measured for every page in Google's index and factor into rankings.

Our audit measures server response time (TTFB) as a direct indicator of server performance, HTML page size, and image dimension declarations (missing width/height attributes are a primary cause of CLS). A page that takes over 3 seconds to respond is already losing rankings to faster competitors, regardless of content quality. Use our Webpage Size Checker for a deeper performance audit.

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Open Graph & Social Tags: Don't Let Your Pages Look Broken When Shared

When someone shares your URL on LinkedIn, Facebook, WhatsApp, or Twitter/X, the platform reads your Open Graph tags to generate the preview card — the image, title, and description that appears in the post. Without these tags, platforms generate their own preview using whatever they find first, which is often the wrong image, a navigation element as the title, or nothing at all.

A broken social preview is a broken first impression. Every click from social media starts with the preview card — make it count. Our audit checks for og:title, og:description, og:image, og:type, twitter:card, and twitter:title.

Why Behind the Search

Built by SEOs, for SEOs. No Paywalls. Ever.

Behind the Search is a free professional SEO tool platform trusted by SEO professionals, content teams, and developers across India and globally. We've built over 40 specialised tools — each one solving a specific, real-world SEO problem that practitioners face daily.

We don't gate features behind a subscription. We don't require an account. We don't have a "free tier" with a 5-audit monthly limit. Every tool, including this advanced SEO audit, is completely free — because good SEO knowledge shouldn't be locked behind a credit card.

40+ Free SEO Tools
30+ Signals Checked
0 Login Required
Free Audits
No account or sign-up required

Paste a URL and run your audit. No email, no password, no cookie consent wall.

Live page analysis — not cached data

We fetch the actual live page every time, so you always see current issues, not stale data from weeks ago.

Actionable fixes, not vague scores

Every issue comes with a specific, plain-English fix. We tell you exactly what to change and why it matters.

Linked to specialist tools

Each finding links directly to the relevant specialist tool — Canonical Checker, Schema Generator, Noindex Checker — for deeper investigation.

Built and maintained by SEO practitioners

Every signal we check is based on real-world SEO impact — not a checkbox list borrowed from a generic crawler.

FAQ

Frequently Asked Questions

What is an SEO audit tool?

An SEO audit tool analyses a webpage and evaluates it against Google's ranking signals — title tags, meta descriptions, canonical tags, robots directives, schema markup, page speed, mobile signals, content quality, and more. It identifies issues that prevent the page from ranking, explains why each issue matters, and recommends specific fixes. Our tool checks over 30 SEO signals and delivers an SEO score from 0 to 100 alongside categorised findings for every page you audit.

How often should I run an SEO audit?

SEO professionals typically run page-level audits before publishing any new page, after any site migration or CMS update, after a Google core algorithm update causes a ranking drop, and any time a previously ranking page loses significant traffic. For active sites, running an audit on key pages monthly is a good practice. Our tool is free and unlimited, so you can run it as often as needed.

What does the SEO score mean?

The SEO score (0–100) represents the overall health of the page based on all signals checked. Scores are graded: 90–100 is Grade A (Outstanding), 80–89 is Grade B (Good), 60–79 is Grade C (Needs Work), 40–59 is Grade D (Poor), and below 40 is Grade F (Critical). The score is calculated by starting at 100 and deducting points for each issue found, with more impactful problems (like noindex or missing H1) costing more points than minor ones (like URL uppercase characters).

Can I audit a competitor's website?

Yes. Our tool fetches and audits any publicly accessible URL — your own pages or a competitor's. Analysing a competitor's page is a legitimate and common SEO research technique. You can see what schema they're using, whether their on-page fundamentals are strong, their content length, social tag completeness, and any technical issues they have. This helps identify gaps where you can outperform them.

Why does my page show an error when auditing?

Some pages cannot be audited because the server blocks automated requests (common with Cloudflare protection), requires authentication (login-only pages), is served entirely via JavaScript rendering (single-page applications), or is genuinely offline. Pages behind login walls, paywalls, or rate-limiting firewalls will return an error. If a public page fails, try again — transient network issues are rare but possible.

What is the difference between on-page SEO and technical SEO?

On-page SEO refers to the content and HTML elements on the page itself — title tags, meta descriptions, headings, body copy, image ALT text, internal links, and keyword usage. Technical SEO refers to the infrastructure that affects how search engines crawl, index, and rank the page — canonical tags, robots directives, HTTPS, site speed, mobile responsiveness, structured data, and URL structure. Both are essential and both are audited by this tool.

Does this tool check for Google penalties?

This tool audits technical and on-page SEO signals — it does not access Google Search Console data and cannot directly detect manual penalties. However, many common penalty triggers (thin content, missing noindex on low-quality pages, over-optimised title tags) are flagged by the audit. If you suspect a manual penalty, check the Manual Actions report in Google Search Console directly.

Is this SEO audit tool completely free?

Yes — completely free, with no account, no credit card, no monthly limit, and no "pro" version you need to upgrade to. Behind the Search provides over 40 professional SEO tools free of charge, forever. We believe professional SEO knowledge and tooling should be accessible to everyone, not just those who can afford expensive subscriptions.

What is AEO and how does this tool help with it?

AEO (Answer Engine Optimisation) is the practice of optimising content to be selected by AI assistants, voice search engines, and Google's AI Overviews as the answer to a query. Schema markup (especially FAQPage, HowTo, and Article types), heading structure, content depth, and technical accessibility are all AEO signals. Our audit identifies missing schema, weak heading structure, and thin content — the three biggest blockers to AEO inclusion.

What schema markup should every page have?

At minimum, most pages benefit from: WebPage or Article schema (establishes content type), BreadcrumbList (improves SERP navigation display), and Organisation schema on the homepage (establishes entity identity). Blog posts should add Article or BlogPosting. Pages with questions should add FAQPage. Product pages need Product schema. Our Schema Generator tool can build all of these for you instantly.

Start for Free — Right Now

Stop Guessing Why Your Pages Aren't Ranking.

Run a free advanced SEO audit on any page in seconds. No login. No credit card. No limits. Just the answers you need to start ranking.