Github.com SEO Score & Performance Report

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https://github.com

Desktop

Mobile

Score Analysis

LIVE

73OF 100

Needs Work

SEO

Perf

Page Title

GitHub · Change is constant. GitHub keeps you ahead. · GitHub

Google Search Preview|How your page appears in search results

SERP Score

Needs Work

github.com

https://github.com

GitHub · Change is constant. GitHub keeps you ahead. · GitHub

 Title may be truncated in search results(505px / 580px max)

Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.

Snippet Quality

Title Length61 chars

030–60 optimal90

Description Length186 chars

070–160 optimal240

Power Word

CTA

URL Readable

HTTPS

No Truncation

Recommendations4 found

warningTitle too long (61 chars)

Keep under 60 characters

infoTitle lacks CTR-boosting power words

Consider adding words like "free", "guide", "best" to improve click-through rate

infoMeta description too long (186 chars)

Keep under 160 characters

infoMeta description lacks a call-to-action

Add action verbs like "Learn", "Discover" to encourage clicks

Performance Report|Google PageSpeed Insights

Lighthouse v13.0.1Mar 3, 2026, 03:41 PM

Status200OK

Load Time0.19sFAST

HTML Size549 KBLARGE

CompressionGZIPON

HTTPSSecureSECURE

Render-Block2 scriptsFOUND

Poor

LCPPOOR

6.5 s

Largest Contentful Paint

FCPPOOR

5.1 s

First Contentful Paint

TBTPOOR

1,100 ms

Total Blocking Time

CLSGOOD

Cumulative Layout Shift

SIPOOR

8.7 s

Speed Index

TTFBGOOD

Root document took 270 ms

Time to First Byte

FIDPOOR

490 ms

First Input Delay

Page Load FilmstripVisual timeline of how your page renders

1.0s

2.1s

3.1s

4.1s

5.1s

6.2s

7.2s

8.2s

Issues Found12 found

criticalLargest Contentful Paint: 6.5 s (poor)high

How to fixOptimize images, preload LCP element, reduce server response time. Target < 2.5s

What this meansLCP measures when the largest visible element finishes rendering.

SEO ImpactSlow LCP increases bounce rate and hurts Core Web Vitals ranking signal.

criticalTotal Blocking Time: 1,100 ms (poor)high

How to fixBreak up long tasks, defer non-critical JavaScript, use web workers. Target < 200ms

What this meansTBT measures total time the main thread was blocked. It's a lab proxy for INP.

SEO ImpactHigh TBT means the page feels unresponsive. This directly impacts INP, a Core Web Vital.

warningFirst Contentful Paint: 5.1 s (poor)medium

How to fixReduce server response time, eliminate render-blocking resources, inline critical CSS. Target < 1.8s

What this meansFCP measures when the first piece of content is rendered on screen.

SEO ImpactSlow FCP means users see a blank page for too long.

warningSpeed Index: 8.7 s (poor)medium

How to fixOptimize critical rendering path, reduce main-thread work. Target < 3.4s

What this meansSpeed Index measures how quickly content is visually displayed during page load.

SEO ImpactA high Speed Index means the page appears to load slowly.

warningReduce unused CSS - Est savings of 181 KiB (potential savings: 910ms) / 181 KB

How to fixReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

infoReduce unused JavaScript - Est savings of 703 KiB (potential savings: 703 KB)

How to fixReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

infoAvoid enormous network payloads - Total size was 6,604 KiB

How to fixLarge network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

infoAvoid large layout shifts

How to fixThese are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due …

infoReduce JavaScript execution time - 1.4 s

How to fixConsider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

infoMinimize main-thread work - 9.0 s

How to fixConsider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

warningLarge HTML (549KB)

How to fixReduce HTML size, minify, and remove inline scripts/styles

warning2 render-blocking scripts in <head>

How to fixAdd async or defer to scripts

OpportunitiesPotential savings to improve load time

Reduce unused CSSEst savings of 181 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

0.9s potential savings 181 KB transferable

Reduce unused JavaScriptEst savings of 703 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

703 KB transferable

Avoid enormous network payloadsTotal size was 6,604 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

DiagnosticsAdditional performance insights

Avoid large layout shifts

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due …

Reduce JavaScript execution time

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

1.4 s

Minimize main-thread work

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

9.0 s

Image elements do not have explicit `width` and `height`

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Network Requests

LCP breakdown

Font display

3rd parties

Layout shift culprits

Minify JavaScript

Network Round Trip Times

Optimize DOM size

Script Treemap Data

Avoid multiple page redirects

Legacy JavaScript

Diagnostics

User Timing marks and measures

Initial server response time was short

Optimize viewport for mobile

Metrics

Document request latency

Screenshot Thumbnails

Tasks

Resources Summary

Use efficient cache lifetimes

Final Screenshot

Minify CSS

Cumulative Layout Shift

Avoid long main-thread tasks

Server Backend Latencies

Heading Structure|Content hierarchy and heading tags

85 / 100

H1

ideal: 1

H2

ideal: 2+

H3

ideal: optional

H4

ideal: optional

Heading Hierarchy30 total

H1Search code, repositories, users, issues, pull requests...

H1Provide feedback

H1Saved searches

H1The future of building happens together

H2Navigation Menu

H2Use saved searches to filter your results more quickly

H2GitHub features

H2GitHub customers

H2Accelerate your entire workflow

H2Built-in application security where found means fixed

H2Work together, achieve more

H2From startups to enterprises, GitHub scales with teams of any size in any industry.

H2Millions of developers and businesses call GitHub home

H2Site-wide Links

H3Your AI partner everywhere. Copilot is ready to work with you at each step of the software development lifecycle.

H3Automate your path to production

H3Code instantly from anywhere

H3Keep momentum on the go

H3Shape your toolchain

H3Apply fixes in seconds. Spend less time debugging and more time building features with Copilot Autofix.

H3Plan with clarity. Organize everything from high-level roadmaps to everyday tasks.

H3Keep track of your tasks

H3Share ideas and ask questions

H3Review code changes together

H3Fund open source projects

+5 more headings

Recommendations1

warningMultiple H1 tags (4)

Use only one <h1> per page

Structured Data|Schema markup, Open Graph and Twitter Cards

70 / 100

JSON-LD Schema

Not found

Open Graph

6 tags

Twitter Cards

5 tags

Microdata

Not found

Open Graph Tags

og:titleGitHub · Change is constant. GitHub keeps you ahead.

og:descriptionJoin the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.

og:imagehttps://images.ctfassets.net/8aevphvgewt8/4pe4eOtUJ0ARpZRE4fNekf/f52b1f9c52f059a33170229883731ed0/GH-Homepage-Universe-img.png

og:urlhttps://github.com/

og:typeobject

og:site_nameGitHub

missing: og:locale

Recommendations1

criticalNo JSON-LD structured data found

Add JSON-LD schema markup (e.g., WebPage, Organization, Article)

Image Optimization|Alt text, lazy loading and dimensions

75 / 100

Total Images

Missing Alt Text

100% have alt text

Missing Dimensions

Lazy Loaded

100%

24 of 24 images

Recommendations2

warning17 images with empty alt

Add meaningful alt text (empty is OK for decorative images)

info22 images without explicit dimensions

Add width/height to prevent layout shifts (CLS)

Link Analysis|Internal, external and nofollow links

94 / 100

Total Links

139

Internal

104

75% of all links

External

25% of all links

Nofollow

Link Distribution

75% Internal

25% External

3 links with empty anchor text

External Links

docs.github.comDocumentation

github.blogBlog

github.blogChangelog

skills.github.comGitHub Skills

docs.github.comDocumentation

support.github.comCustomer support

securitylab.github.comSecurity Lab

maintainers.github.comMaintainer Community

archiveprogram.github.comArchive Program

docs.github.comSearch syntax tips

+20 more

Recommendations1

info3 links with empty anchor text

Add descriptive anchor text to links

Indexability|Robots, canonical and sitemap

85 / 100

Canonical URL

Set

https://github.com

Noindex

Allowed

Robots.txt

Found

Sitemap

Missing

Crawl Directives

Meta RobotsNot set

X-Robots-TagNot set

GooglebotNot set

NofollowNo — links followed

Canonicalhttps://github.com

Page URLhttps://github.com

Recommendations2

infoNo Sitemap reference in robots.txt

Add Sitemap: https://github.com/sitemap.xml to robots.txt

warningNo XML sitemap found

Create a sitemap.xml and submit it to search engines

Content Structure|Content quality and semantic HTML

75 / 100

Word Count

15381

Paragraphs

All good length

Lists

Words per Heading

513

Ideal: 100-300

Title vs H1 Alignment1980% similar

TITLE TAG

GitHub · Change is constant. GitHub keeps you ahead. · GitHub

H1 TAG

Search code, repositories, users, issues, pull requests...

Semantic HTML Elements11 sections

<main>

<nav>

Recommendations3

warningTitle and H1 have low similarity (20%)

Align your <title> and <h1> to reinforce the main topic

infoH2 headings don't relate to the main H1 topic

Ensure H2s support the main topic for better coherence

warningPoor content chunking (513 words/heading)

Add more headings to break content into digestible chunks (aim for 150-200 words per section)

AI Readability|How easily AI models can process your content

55 / 100

Reading Level

Difficult

Moderately complex

Total Words

15381

Sentences

580

Avg Sentence Length

27 words

Vocabulary Richness

10%

1470 unique words

Opening Paragraph12 words

We read every piece of feedback, and take your input very seriously.

Recommendations4

warningDifficult to read (Flesch: 33)

Break complex sentences. Aim for Flesch score 60+

warningLong average sentence length (27 words)

Keep sentences under 20 words for better AI parsing

infoLow vocabulary diversity

Use varied vocabulary to provide richer context for AI

infoFirst paragraph is too short for AI summarization

Make the first paragraph a comprehensive summary (30-50 words)

AI Citation Potential|How likely AI will quote your content

100 / 100

Named Entities

256

166% density

FAQ Patterns

No FAQ Schema

Citations

Lists & Tables

137 items, 0 tables

Top Named Entities

GitHub63Customer42Stories41Customer Stories41Copilot27Automation18Security15Collaboration14Hero9Breakout8Features7Autofix6Copilot Autofix6Code5Mercado Libre5Advanced4Libre4Mercedes Benz4Sign3Mercedes3

Quotable Content

It helps us onboard new software engineers and get them productive right away. We have all our source code, issues, and pull requests in one place... GitHub is a complete platform that frees us from menial tasks and enables us to do our best work.

Content Freshness|Date signals and cache headers

85 / 100

Date Signals

Found

Search engines can determine content freshness

Cache Control

Set

max-age=0, private, must-revalidate

ETag

Set

Date Signals

Last-Modified HeaderNot found

Published DateNot found

Modified DateNot found

Time Elements (2)

20262026

2024-0202/2024

Recommendations1

warningNo datePublished or dateModified in structured data

Add datePublished and dateModified to your JSON-LD schema.

Security Headers|HTTP security headers analysis

92 / 100

Content-Security-Policy

Prevents XSS and injection attacks

default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com *.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com github.githubassets.com objects-origin.githubusercontent.com copilot-proxy.githubusercontent.com proxy.individual.githubcopilot.com proxy.business.githubcopilot.com proxy.enterprise.githubcopilot.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net productionresultssa1.blob.core.windows.net productionresultssa2.blob.core.windows.net productionresultssa3.blob.core.windows.net productionresultssa4.blob.core.windows.net productionresultssa5.blob.core.windows.net productionresultssa6.blob.core.windows.net productionresultssa7.blob.core.windows.net productionresultssa8.blob.core.windows.net productionresultssa9.blob.core.windows.net productionresultssa10.blob.core.windows.net productionresultssa11.blob.core.windows.net productionresultssa12.blob.core.windows.net productionresultssa13.blob.core.windows.net productionresultssa14.blob.core.windows.net productionresultssa15.blob.core.windows.net productionresultssa16.blob.core.windows.net productionresultssa17.blob.core.windows.net productionresultssa18.blob.core.windows.net productionresultssa19.blob.core.windows.net github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com wss://alive-staging.github.com api.githubcopilot.com api.individual.githubcopilot.com api.business.githubcopilot.com api.enterprise.githubcopilot.com edge.fullstory.com rs.fullstory.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com copilot-workspace.githubnext.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com www.youtube-nocookie.com; img-src 'self' data: blob: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com private-avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com release-assets.githubusercontent.com secured-user-images.githubusercontent.com user-images.githubusercontent.com private-user-images.githubusercontent.com opengraph.githubassets.com marketplace-screenshots.githubusercontent.com copilotprodattachments.blob.core.windows.net/github-production-copilot-attachments/ github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com objects-origin.githubusercontent.com *.githubusercontent.com images.ctfassets.net/8aevphvgewt8/; manifest-src 'self'; media-src github.com user-images.githubusercontent.com secured-user-images.githubusercontent.com private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com github.githubassets.com assets.ctfassets.net/8aevphvgewt8/ videos.ctfassets.net/8aevphvgewt8/; script-src github.githubassets.com; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/

SET

Strict-Transport-Security

Forces HTTPS connections

max-age=31536000; includeSubdomains; preload

SET

X-Frame-Options

Prevents clickjacking attacks

deny

SET

X-Content-Type-Options

Prevents MIME-type sniffing

nosniff

SET

Referrer-Policy

Controls referrer information

origin-when-cross-origin, strict-origin-when-cross-origin

SET

Permissions-Policy

Controls browser features

MISSING

Recommendations2

infoHSTS should include subdomains

Add includeSubDomains to HSTS header

infoMissing Permissions-Policy header

Add Permissions-Policy header to control browser features

Trust Signals|Essential trust-building pages

100 / 100

Contact Page

FOUND

A contact page builds trust with visitors and search engines

https://support.github.com?tags=dotcom-footer

About Page

FOUND

An about page establishes credibility and expertise

/security/advanced-security/code-security

FOUND

Required for compliance and builds user trust

https://docs.github.com/site-policy/privacy-policies/github-privacy-statement

FOUND

Protects both the site owner and users

https://docs.github.com/site-policy/github-terms/github-terms-of-service

Tech Stack|6 technologies detected

80 / 100

Analytics1

🛠️

FullStory

Script signature

javascript

CMS1

🛍️

Shopify

Script signature

javascript

Frameworks4

⚛️

React

Script signature

javascript

🛠️

Ember.js

Script signature

javascript

🛠️

Prototype

Script signature

javascript

📝

WordPress

Script signature

javascript

github.com SEO Analysis