SEO Analyzer – Free Website SEO Checker & On-Page Optimization Tool

About SEO Analyzer

The SEO Analyzer is an online tool that analyzes a web page and evaluates its on-page SEO health. It fetches the page HTML, inspects multiple SEO-related elements, calculates category-wise scores, and generates an overall SEO score along with actionable suggestions.

This tool is designed to help users quickly understand how well a page follows on-page SEO best practices based on measurable technical and content factors.

What Is This Tool?

This SEO Analyzer checks a single web page URL and evaluates its SEO using automated analysis.
Once a URL is submitted, the tool:

• Fetches the page content

• Parses the HTML structure

• Analyzes SEO-related elements

• Calculates scores for multiple SEO categories

• Generates improvement suggestions

• Provides a downloadable SEO report

All analysis is performed in real time based on the current page content.

What This SEO Analyzer Checks

The tool analyzes the following SEO categories:

Meta Tags Analysis

The analyzer checks essential meta elements, including:

• Title tag

  • Text content

  • Character length

  • Length optimization status

• Meta description

  • Presence

  • Content length

  • Optimization warnings

• Canonical tag

  • Presence

  • Empty or relative URL handling

• Viewport meta tag

  • Mobile responsiveness indicator

• Robots meta tag (if present)

• Meta keywords (informational only)

Each element is assigned a status and contributes to the meta score.

Headings Structure

The tool analyzes the page heading structure by:

• Counting all headings from H1 to H6

• Detecting missing or multiple H1 tags

• Extracting all non-empty heading text

• Checking for heading hierarchy gaps (e.g., missing H2 between H1 and H3)

This helps identify structural issues in content organization.

Content & Keywords

Content analysis is performed on visible text only:

• Removes script and style elements

• Calculates total word count

• Flags low or moderate content length

• Identifies the most common words

• Detects potential keyword stuffing based on word density

A preview of extracted visible content is also included for reference.

Links Analysis

The tool analyzes all anchor links on the page:

• Total number of links

• Internal vs external links

• Nofollow links count

• Detection of pages with no internal links

• Warning for high nofollow ratios

Each link is classified and displayed with its type and attributes.

Images Analysis

The image analysis checks:

• Total number of images

• Images missing alt attributes

• Image source URLs

• Width and height attributes (if available)

Missing alt text results in score deductions and improvement suggestions.

Technical SEO

Technical checks include:

• HTTPS / SSL usage

• HTTP status code validation

• Page load time measurement

• Favicon presence

• HTML language attribute detection

These checks directly affect the technical SEO score.

Social & Schema Analysis

The analyzer detects:

• Open Graph meta tags

• Twitter Card meta tags

• Schema markup:

  • JSON-LD scripts (with validation)

  • Microdata

  • RDFa attributes

Missing social or schema tags result in warnings and suggestions.

How the Tool Works

1. User enters a valid URL

2. The URL is validated on both client and server

3. The page is fetched with redirects enabled

4. HTML is parsed and analyzed category by category

5. Scores are calculated per category

6. A weighted final SEO score is generated

7. Suggestions are compiled and displayed

Understanding the SEO Score

• The SEO score ranges from 0 to 100

• Each category contributes based on its weight:

  • Meta Tags – 20%

  • Technical SEO – 20%

  • Headings – 15%

  • Content – 15%

  • Links – 10%

  • Images – 10%

  • Social & Schema – 10%

• A visual grade is displayed:

  • Excellent

  • Good

  • Fair

  • Poor

Results Overview Cards

At the top of the results, the tool displays quick indicators for:

• Page load time

• HTTP status code

• HTTPS security

• Mobile responsiveness (viewport tag)

These provide a fast summary of page health.

Category Scores Breakdown

Each SEO category is shown with:

• Percentage score

• Score out of 100

• Weight contribution

• Visual progress bar

This helps identify which areas need the most improvement.

Suggestions and Fix List

Suggestions are generated per category based on detected issues.
All suggestions are:

• Combined

• Deduplicated

• Limited to the top 10 actionable improvements

Detailed View Panels

Expandable sections allow users to view:

• Full heading list

• All detected links

• Image details

• Social tags and schema markup

These views help with deeper inspection without cluttering the UI.

Download SEO Report

Users can download a text-based SEO report that includes:

• URL and final URL

• Analysis date

• Overall SEO score

• Category scores

• Top suggestions

The report is generated instantly and downloaded as a .txt file.