Scrimba.com SEO Score & Performance Report

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https://scrimba.com

Desktop

Mobile

Score Analysis

LIVE

61OF 100

Needs Work

SEO

Perf

Page Title

Learn to code with Scrimba

Google Search Preview|How your page appears in search results

SERP Score

Needs Work

scrimba.com

https://scrimba.com

Learn to code with Scrimba

No meta description found

Snippet Quality

Title Length26 chars

030–60 optimal90

Description Length0 chars

070–160 optimal240

Power Word

CTA

URL Readable

HTTPS

No Truncation

Recommendations3 found

warningTitle too short (26 chars)

Aim for 50-60 characters

infoTitle lacks CTR-boosting power words

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

criticalMissing meta description

Add <meta name="description" content="..."> with 150-160 chars

Performance Report|Google PageSpeed Insights

Lighthouse v13.0.1Mar 3, 2026, 05:21 PM

Status200OK

Load Time0.30sFAST

HTML Size5 KBOK

CompressionGZIPON

HTTPSSecureSECURE

Render-Block1 scriptsFOUND

Poor

LCPPOOR

—

Largest Contentful Paint

FCPPOOR

5.6 s

First Contentful Paint

TBTPOOR

—

Total Blocking Time

CLSGOOD

Cumulative Layout Shift

SINEEDS WORK

5.6 s

Speed Index

TTFBGOOD

Root document took 0 ms

Time to First Byte

FIDPOOR

930 ms

First Input Delay

Page Load FilmstripVisual timeline of how your page renders

0.4s

0.8s

1.2s

1.6s

2.0s

2.4s

2.8s

3.2s

Issues Found5 found

warningFirst Contentful Paint: 5.6 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.

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 …

infoAvoid long main-thread tasks

How to fixLists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasks

infoReduce JavaScript execution time - 2.0 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 reduce Javascript execution time.

warning1 render-blocking scripts in <head>

How to fixAdd async or defer to scripts

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 …

Avoid long main-thread tasks

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasks

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.

2.0 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

2.8 s

Optimize DOM size

Legacy JavaScript

Avoids enormous network payloads

Duplicated JavaScript

Screenshot Thumbnails

Final Screenshot

Document request latency

Layout shift culprits

Network Requests

Diagnostics

Initial server response time was short

Server Backend Latencies

Improve image delivery

Resources Summary

Font display

Image elements have explicit `width` and `height`

Tasks

Network dependency tree

Forced reflow

Optimize viewport for mobile

Avoid non-composited animations

Cumulative Layout Shift

Network Round Trip Times

Use efficient cache lifetimes

3rd parties

Metrics

Script Treemap Data

Heading Structure|Content hierarchy and heading tags

55 / 100

H1

ideal: 1

H2

ideal: 2+

H3

ideal: optional

H4

ideal: optional

Recommendations2

criticalMissing H1 tag

Add exactly one <h1> tag as the main heading

warningNo H2 tags found

Use H2 tags to structure your content sections

Structured Data|Schema markup, Open Graph and Twitter Cards

85 / 100

JSON-LD Schema

1 found

LearningResource

Open Graph

4 tags

Twitter Cards

Not found

Microdata

Not found

Schema Types Detected

LearningResource

Open Graph Tags

og:titleLearn to code with Scrimba

og:descriptionScrimba is the fast way of learning to code! Our interactive courses and tutorials will teach you React, Vue, Angular, Web Development, Node.JS, JavaScript, HTML, CSS, and more.

og:imagehttps://scrimba.com/static/brand/scrimba_opengraph.jpg

og:urlhttps://scrimba.com

missing: og:typemissing: og:site_namemissing: og:locale

Recommendations2

warningMissing Open Graph tags: og:type

Add OG meta tags for social sharing

warningNo Twitter Card meta tags

Add twitter:card, twitter:title, twitter:description meta tags

Image Optimization|Alt text, lazy loading and dimensions

80 / 100

Total Images

Missing Alt Text

Missing Dimensions

Lazy Loaded

0 of 0 images

Recommendations1

infoNo images found

Consider adding relevant images

Link Analysis|Internal, external and nofollow links

80 / 100

Total Links

Internal

0% of all links

External

100% of all links

Nofollow

Recommendations1

warningOnly 0 internal links found

Add more internal links to improve crawlability

Indexability|Robots, canonical and sitemap

85 / 100

Canonical URL

Missing

Noindex

Allowed

Robots.txt

Found

Sitemap

Found

https://scrimba.com/sitemap.xml

Crawl Directives

Meta RobotsNot set

X-Robots-TagNot set

GooglebotNot set

NofollowNo — links followed

CanonicalNot set

Page URLhttps://scrimba.com

Recommendations2

warningNo canonical tag found

Add <link rel="canonical"> pointing to the preferred URL

infoNo Sitemap reference in robots.txt

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

Content Structure|Content quality and semantic HTML

70 / 100

Word Count

Paragraphs

All good length

Lists

Words per Heading

Ideal: 100-300

Semantic HTML Elements

<main>

<nav>

Recommendations2

warningLow word count (0)

Aim for at least 300+ words

warningFew semantic HTML5 elements used

Use <main>, <article>, <nav>, <header>, <footer>, <section>

AI Readability|How easily AI models can process your content

60 / 100

Reading Level

Very Difficult

Hard for AI

Total Words

Sentences

Avg Sentence Length

0 words

Vocabulary Richness

0 unique words

Recommendations2

criticalVery hard to read (Flesch: 0)

Simplify language. Use shorter sentences and common words. AI models perform better with clear text.

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

0% density

FAQ Patterns

No FAQ Schema

Citations

Lists & Tables

0 items, 0 tables

Content Freshness|Date signals and cache headers

100 / 100

Date Signals

Found

Search engines can determine content freshness

Cache Control

Set

private, max-age=0

ETag

Not set

Date Signals

Last-Modified HeaderNot found

Published DateDecember 23, 2024

Modified DateMarch 2, 2026

JSON-LD Date Fields

LearningResource.datePublishedDecember 23, 2024

LearningResource.dateModifiedMarch 2, 2026

Security Headers|HTTP security headers analysis

25 / 100

Content-Security-Policy

Prevents XSS and injection attacks

MISSING

Strict-Transport-Security

Forces HTTPS connections

MISSING

X-Frame-Options

Prevents clickjacking attacks

MISSING

X-Content-Type-Options

Prevents MIME-type sniffing

MISSING

Referrer-Policy

Controls referrer information

MISSING

Permissions-Policy

Controls browser features

MISSING

Recommendations6

criticalMissing Content-Security-Policy header

Add Content-Security-Policy header to prevent XSS and data injection attacks

warningMissing Strict-Transport-Security header

Add Strict-Transport-Security header with max-age of at least 31536000

warningMissing X-Frame-Options header

Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking

warningMissing X-Content-Type-Options header

Add X-Content-Type-Options: nosniff to prevent MIME-type sniffing

Trust Signals|Essential trust-building pages

75 / 100

Contact Page

MISSING

A contact page builds trust with visitors and search engines

About Page

MISSING

An about page establishes credibility and expertise

MISSING

Required for compliance and builds user trust

MISSING

Protects both the site owner and users

Recommendations2

warningMissing trust pages: contact, about, privacy, terms

Add links to Contact, About, Privacy Policy, and Terms pages.

infoNo author attribution found

Add author information via schema markup or rel="author" for E-E-A-T signals

Tech Stack|5 technologies detected

75 / 100

CDN1

☁️

Cloudflare

Server: cloudflare

header

Frameworks4

⚛️

React

Script signature

javascript

💚

Vue.js

Script signature

javascript

🅰️

Angular

Script signature

javascript

🛠️

Fetch API

Script signature

javascript

scrimba.com SEO Analysis