Free SEO Audit Tool
Audit a public webpage for SEO issues, technical problems, metadata, headings, links, images, schema, and actionable fixes. Get an instant score and prioritized recommendations. All processing happens locally in your browser.
What is an SEO Audit Tool?
An SEO Audit Tool analyzes a publicly accessible webpage for common on-page and technical SEO issues. It reviews elements such as title tags, meta descriptions, headings, canonical tags, image attributes, links, structured data, social metadata, and indexability signals.
TryFormatter's SEO Audit Tool organizes the findings into clear categories and calculates a weighted score out of 100. The score is intended to help developers, marketers, writers, and website owners identify issues that may deserve attention. It does not guarantee search rankings, traffic, indexing, or rich-result eligibility.
Why On-Page and Technical SEO Checks Matter
Search engines use automated crawlers to discover and understand webpages. Clear metadata, logical headings, crawlable links, useful content, valid canonical tags, accessible images, and structured data can make a page easier for search systems and users to interpret.
An SEO audit can reveal missing or conflicting elements before they become larger maintenance problems. It can also help teams review page templates, content updates, redesigns, migrations, and new releases more consistently.
Metadata Checks
Reviews title tags, meta descriptions, canonical links, viewport settings, charset declarations, and robots directives.
Heading Structure
Checks whether the page has a clear H1 and reviews the heading outline for empty or skipped heading levels.
Image SEO Checks
Identifies missing alt attributes, reviews image dimensions, and checks common loading and responsive-image attributes.
Structured Data Detection
Detects JSON-LD blocks, reports syntax problems, and lists schema types found in the page source.
How to Use the TryFormatter SEO Audit Tool
Follow these steps to review a public webpage or an HTML code snippet:
Choose an Audit Mode
Use the Live URL Auditor for a publicly accessible webpage, or use the Code Snippet Analyzer when you want to review HTML source directly.
Enter the Page URL or HTML
Enter a complete public URL such as https://example.com, or paste the HTML source into the code editor.
Run the SEO Audit
Click Run SEO Audit. The tool validates the input, retrieves public webpage data when required, parses the HTML, and runs the available checks.
Review the SEO Score
Review the overall score, category scores, passed checks, warnings, and higher-priority issues.
Inspect Detailed Findings
Open the Metadata, Content, Links, Images, Technical SEO, Structured Data, Social Tags, and Recommendations sections.
Apply Recommended Fixes
Review why each issue matters, inspect the current value, and use the suggested fix or code example as a starting point.
Examples of SEO Elements Checked
The following table shows common webpage elements reviewed by the audit. The ranges are practical guidance rather than strict ranking rules.
| SEO Element | Practical Guidance | Why It Matters |
|---|---|---|
| Title Tag | Use a clear, descriptive title that fits the page intent. Titles around 50–60 characters often display well, but visual width also matters. | The title helps search engines and users understand the page topic and may appear as the main search-result link. |
| Meta Description | Write a useful summary that matches the page. A range around 120–160 characters is often practical, but search engines may rewrite it. | A relevant description can improve how the page is presented in search results and may support click-through rate. |
| H1 Heading | Use a clear primary heading that describes the main topic. Multiple H1 elements are valid in HTML, but one clear page-level H1 is usually easier to maintain. | A descriptive H1 helps users and search systems understand the page structure. |
| Canonical Link | Use a valid absolute URL that identifies the preferred version of the page. | Canonical tags help consolidate signals when similar or duplicate URLs exist. |
| Image Alt Attributes | Add descriptive alt text to informative images and use an empty alt attribute for decorative images. | Alt text supports accessibility and may help search systems understand image content. |
| Structured Data | Use valid markup that accurately represents visible page content. | Structured data helps search systems understand entities and page types, but it does not guarantee rich results. |
| Open Graph Metadata | Configure an appropriate title, description, image, URL, and content type. | Open Graph tags influence how a page may appear when shared on supported social platforms. |
Common SEO Audit Use Cases
The SEO Audit Tool can support content publishing, development, marketing, and website maintenance workflows.
Client and Prospect Audits
Agencies can review a public website, identify visible issues, and use the findings as a starting point for a proposal or technical discussion.
Pre-Launch Page Checks
Developers can paste HTML from a page template and review metadata, headings, canonical tags, image attributes, and structured data before publishing.
Content Quality Reviews
Writers and editors can review heading hierarchy, page structure, metadata, visible content depth, links, and image accessibility before approval.
Common On-Page SEO Mistakes
Avoid these common problems when preparing or reviewing a webpage.
Vague or Mismatched Title and H1
A title tag and H1 that are vague, unrelated, or focused on different topics make the page purpose less clear to both users and crawlers.
Make the title target click intent in search results, and write the H1 naturally for on-page readers — both aligned to the same topic.
Robots.txt and Noindex Conflict
Blocking a URL in robots.txt while also adding a noindex directive causes crawlers to be blocked before they can read the noindex tag — the page stays indexed.
Remove the disallow rule from robots.txt. Let crawlers fetch the page so they can process and honor the noindex directive correctly.
Relative Canonical URL Path
Using a relative path like /page instead of an absolute URL like https://domain.com/page for the canonical can be misread on subdomains or staging environments.
Always use absolute canonical URLs including the full protocol and domain: https://www.yourdomain.com/canonical-path.
Missing Alt Text on Images
Images without alt attributes are invisible to screen readers and search engine bots, reducing accessibility compliance and image search visibility.
Add descriptive alt text to informative images. Use alt="" (empty, not missing) for purely decorative images so assistive tools skip them.
Understanding the 100-Point SEO Score
The TryFormatter SEO Audit Tool uses a weighted scoring model across nine categories. Higher-priority failures remove more points than informational or low-priority findings.
- Metadata — 20 points: Reviews the title, meta description, canonical tag, robots directives, viewport, charset, and language settings.
- Content and Headings — 15 points: Reviews the H1, heading outline, visible content depth, empty headings, and common placeholder content.
- Technical SEO — 20 points: Reviews response status, HTTPS, redirects, indexability signals, document structure, and other available technical checks.
- Links — 10 points: Reviews internal and external links, empty destinations, readable anchor text, link attributes, and mixed-protocol URLs.
- Images — 10 points: Reviews alt attributes, image dimensions, loading behavior, responsive-image attributes, and source URLs.
- Structured Data — 10 points: Detects schema markup, reports JSON-LD syntax errors, and lists schema types found.
- Social Metadata — 5 points: Reviews Open Graph and Twitter Card tags used for link previews.
- Accessibility-Related SEO — 5 points: Reviews language declarations, image alternatives, and selected document-structure signals.
- Indexability and Crawlability — 5 points: Reviews noindex directives, robots-related signals, and sitemap or robots.txt discovery when available.
Score Limitation
A high SEO score does not guarantee higher rankings, indexing, traffic, or rich results. It only means the audited page passed more of the checks included in this tool.
Example SEO Metadata
The following example shows a basic set of metadata commonly placed inside the <head> section. Update every value to match the actual page content.
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Descriptive Page Title | Brand Name</title>
<meta
name="description"
content="Write a useful summary that accurately describes the page and matches its main search intent."
>
<link
rel="canonical"
href="https://www.example.com/preferred-page"
>
<meta property="og:title" content="Descriptive Page Title">
<meta property="og:description" content="A clear summary for social sharing.">
<meta property="og:image" content="https://www.example.com/social-image.jpg">
<meta property="og:url" content="https://www.example.com/preferred-page">
<meta property="og:type" content="website">
</head>Privacy and Data Handling
The Live URL Auditor is designed for publicly accessible webpages. A server-side fetch process may be used to retrieve the page's public HTML because browsers normally restrict cross-origin webpage requests. The returned HTML is then analyzed to produce the audit results.
The Code Snippet Analyzer processes the HTML you paste in the browser interface. No signup is required. Avoid entering confidential source code or auditing private dashboards, authenticated pages, internal network URLs, or sensitive staging environments unless you are comfortable with the tool's processing method.
Do not rely on an SEO audit tool as a security scanner. This tool reviews selected SEO-related signals and does not test for every security, performance, accessibility, or compliance issue.
Page Launch SEO Checklist
Use this checklist as practical guidance before publishing or updating a webpage. Requirements may vary depending on the page type, audience, and search intent.
Frequently Asked Questions
What is an SEO audit?
An SEO audit is a review of a webpage's on-page and technical SEO elements. It can include metadata, headings, links, images, canonical tags, robots directives, structured data, social tags, and crawlability signals.
How does the SEO Audit Tool calculate the score?
The tool uses a weighted 100-point model across metadata, content and headings, technical SEO, links, images, structured data, social metadata, accessibility-related checks, and indexability. Higher-priority failures remove more points than informational findings.
Does a high SEO score guarantee better rankings?
No. A high score only means that the page passed more of the checks included in this tool. Rankings depend on many other factors, including content quality, competition, relevance, authority, user experience, crawlability, and search intent.
How does the Live URL Auditor access a webpage?
The Live URL Auditor may use a server-side fetch process to retrieve publicly accessible HTML because browsers restrict many cross-origin webpage requests. The returned webpage data is then analyzed to generate the audit results.
Can I analyze HTML code directly?
Yes. The Code Snippet Analyzer lets you paste HTML source directly into the browser interface for analysis. Avoid pasting confidential source code unless you are comfortable with the tool's processing method.
What title and meta-description lengths should I use?
There is no single mandatory character count. Titles around 50 to 60 characters and descriptions around 120 to 160 characters often display well, but visual width, device type, query relevance, and search-engine rewriting can affect the final search snippet.
Are multiple H1 tags always an SEO error?
No. Multiple H1 elements are valid in modern HTML. However, one clear page-level H1 is often easier for users, editors, and developers to understand and maintain. The audit may flag multiple H1 elements for review rather than treating them as an automatic ranking failure.
How does the image alt-text check work?
The tool checks whether image elements include an alt attribute. Informative images should normally have descriptive alt text, while decorative images can correctly use an empty alt attribute such as alt="".
Which structured data formats can the tool detect?
The tool can detect structured data formats supported by the implementation, including JSON-LD. It can report JSON syntax errors and list schema types such as Article, Product, FAQPage, BreadcrumbList, Organization, LocalBusiness, and SoftwareApplication when present.
Does structured data guarantee rich results?
No. Valid structured data helps search engines understand page content, but it does not guarantee rich-result eligibility or display. The markup should also be checked with Google's Rich Results Test and the Schema.org Validator when relevant.
Why should canonical URLs be absolute?
An absolute canonical URL includes the protocol and domain, making the preferred URL explicit. This reduces ambiguity when similar URLs, subdomains, parameters, or alternate page versions exist.
What is the difference between the SEO Audit Tool and SEO Report Generator?
The SEO Audit Tool is designed for fast interactive checks, issue prioritization, category scores, and recommended fixes. The SEO Report Generator is intended for creating a more detailed and exportable report for documentation or client use.
Does the audit check mixed-content URLs?
The tool can identify HTTP resource references found on an HTTPS page when supported by the current implementation. This is an HTML-level check and does not replace a complete browser security or network audit.
Can the tool audit a password-protected page?
The Live URL Auditor is intended for publicly accessible webpages. Pages requiring authentication may return an access error or redirect. For a page you are authorized to review, you may use the Code Snippet Analyzer with the relevant HTML source.
What does the Fix First section show?
The Fix First section presents a limited number of higher-priority recommendations. Items may include the issue, why it matters, the current value, a suggested action, estimated effort, and links to related TryFormatter tools.
Why is a missing viewport tag flagged?
A missing viewport tag can cause a page to render poorly on mobile devices. The issue is important for mobile usability, but its exact severity depends on the page implementation and responsive design.
Why might Google show different snippet text?
Search engines may rewrite a title or meta description when another part of the page appears more relevant to a user's query. A custom title and description are recommendations, not guarantees of the exact search-result snippet.
Can I audit any website?
You can audit publicly accessible webpages that allow the tool to retrieve their HTML. Private networks, localhost addresses, authenticated dashboards, blocked pages, and unsupported file types cannot be audited through the Live URL Auditor.
Does the SEO Audit Tool require signup?
No. You can run the SEO Audit Tool without creating an account.
How often should I run an SEO audit?
Run an audit after important content changes, template updates, redesigns, migrations, metadata changes, structured-data updates, or when investigating a drop in visibility. Regular reviews can also help catch regressions.
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