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Report generated 2 years ago
https://backlinko.com/on-page-seo
Your general SEO Checkup Score
Archived
90/100
SEO Score
Average SEO score of top 100 sites: 75%
This website received an SEO score of 90 out of 100, which is higher than the average score of 75. Our analysis has identified 7 important issues that can be addressed to further enhance your website's performance and improve its search engine visibility.
7 Failed
4 Warnings
59 Passed
Issues to fix
HIGH
Consider reducing the HTML size to improve loading times and retain visitors.
MEDIUM
Reducing the Document Object Model (DOM) size can lead to faster page loading times, improved site performance, and better user experience by decreasing the amount of time it takes for the browser to process and render the page.
MEDIUM
Avoid performance and security issues by adding "rel=noopener" or "rel=noreferrer" to your "target=_blank" links.
LOW
Without an SPF record, spammers can easily spoof emails from this domain, potentially leading to compromised email security and deliverability issues.
LOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
LOW
Consider moving inline CSS styles to an external stylesheet to improve site performance and maintain separation of content and design.
Common SEO issues
Score: 89
Failed: 1
Warnings: 3
Passed: 21
Meta Title Test100% of top 100 sites passed
  • This webpage is using a title tag.
Text: On-Page SEO: The Definitive Guide (2023)
Length: 40 characters
Meta Description Test97% of top 100 sites passed
  • This webpage is using a meta description tag with a length of 117 characters. We recommend using well-written and inviting meta descriptions with a length between 150 and 220 characters (spaces included).
Text: This is a complete guide to on-page SEO. Learn exactly how to optimize your titles, descriptions and content in 2023.
Length: 117 characters
Google Search Results Preview Test
Desktop version
https://backlinko.com/on-page-seoOn-Page SEO: The Definitive Guide (2023)This is a complete guide to on-page SEO. Learn exactly how to optimize your titles, descriptions and content in 2023.
Mobile version
https://backlinko.com/on-page-seoOn-Page SEO: The Definitive Guide (2023)This is a complete guide to on-page SEO. Learn exactly how to optimize your titles, descriptions and content in 2023.
Social Media Meta Tags Test83% of top 100 sites passed
  • This webpage is using social media meta tags.
Open Graph Meta Tags
og:url
https://backlinko.com/on-page-seo
og:type
article
og:title
On-Page SEO: The Definitive Guide (2023)
og:description
This is a complete guide to on-page SEO. Learn exactly how to optimize your titles, descriptions and content in 2023.
og:image
https://api.backlinko.com/app/uploads/2020/01/on-page-seo-social.png
og:image:width
1200
og:image:height
630
og:locale
en_US
og:site_name
Backlinko
Most Common Keywords Test
  • There is likely no optimal keyword density (search engine algorithms have evolved beyond keyword density metrics as a significant ranking factor). It can be useful, however, to note which keywords appear most often on your page and if they reflect the intended topic of your page. More importantly, the keywords on your page should appear within natural sounding and grammatically correct copy.
127page110says107reply80brian73content
Keywords Usage Test81% of top 100 sites passed
  • The most common keywords of this webpage are distributed well across the important HTML tags. This helps search engines to properly identify the topic of this webpage.
Keyword
Title tag
Meta description
Headings
page
says
reply
brian
content
Keywords Cloud Test
actuallyarticleauthoritybacklinkobestbetterblogbrianchaptercontentcookiecookiesdeandefinitelydescriptiondescriptionsexampleexternalfeaturedgoodgooglegreatguidehavehelphelpshighimageimagesimportantincludeinformationintentinternaljustkeywordkeywordsknowlikelinklinkslistlongmakemakesmetaneedoptimizeoptimizingpagepagespeoplepostpostsrankrankingratereallyrecentlyreplyresultsrichrightsayssearchsensesignalssitesitessnippetstrategiessupersuretagstargettermstextthankthanksthingsthinktimetimestipstitletoolstopicunderstanduniqueurlsuseduserusingvaluablewantwebsitewelcomewordsworkwrite
Competitor Domains Test
Understand your competitors' SEO and backlink profile

Get related competitors and their domain authority score in relation to your domain.

Heading Tags Test70% of top 100 sites passed
  • This webpage contains too many H2 tags! H2 tags should re-inforce the related content of your page to search engines - too many tags may make the topic less clear, or look like spam tactics. Consider using less than 10 H2 tags.
H1 tags
On-Page SEO: The Definitive Guide
H2 tags
Contents
Chapter 1:On-Page SEO Basics
What is On-Page SEO?
Why is On-Page SEO Important?
Chapter 2:Optimize Your Content for SEO
Use Your Target Keyword In The First 100 Words
Wrap Your Blog Post Title in an H1 Tag
Wrap Subheadings in H2 Tags
Keyword Frequency
Use External (Outbound) Links
Optimize Your URLs for SEO
Chapter 3:Optimize Title and Description Tags
Front-load Your Title tag
Use Title Tag Modifiers
Use Unique, Keyword-Rich Meta Descriptions
Chapter 4:Write SEO Content
Unique Content
Valuable Content
Content That Satisfies Search Intent
Chapter 5:Optimize for CTR
Use “Question Title Tags”
Fill In Missing Meta Descriptions
Use Review or FAQ Schema
Add Some Emotion to Your Title Tags
Add the Current Year to Title and Description
Chapter 6:On-Page UX Signals
Push Content Above the Fold
Chunk Your Content
Have an Active Community
Chapter 7:Advanced On-Page SEO Tips
Use Original images
Internal Linking
Write Comprehensive Content
Boost Your Page Speed
Image Optimization
Rank Your Content In Featured Snippets
Voice Search SEO
Now I’d Like to Hear From You
Robots.txt Test94% of top 100 sites passed
  • This website is using a robots.txt file.
https://backlinko.com/robots.txt
Sitemap Test75% of top 100 sites passed
  • This website has a sitemap file.
https://backlinko.com/sitemap.xml
https://backlinko.com/sitemap_index.xml
SEO Friendly URL Test40% of top 100 sites passed
  • All links from this webpage are SEO friendly.
Image Alt Test71% of top 100 sites passed
  • All "img" tags from this webpage have the required "alt" attribute.
Responsive Image Test38% of top 100 sites passed
  • All images in this webpage are properly sized for different users' viewports.
Image Aspect Ratio Test72% of top 100 sites passed
  • All image display dimensions match the natural aspect ratio.
Inline CSS Test2% of top 100 sites passed
  • This webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test99% of top 100 sites passed
  • This webpage does not use HTML deprecated tags.
Google Analytics Test69% of top 100 sites passed
  • This webpage is using Google Analytics.
Favicon Test100% of top 100 sites passed
  • favicon
    This website appears to have a favicon.
JS Error Test74% of top 100 sites passed
  • There are no severe JavaScript errors on this webpage.
Console Errors Test33% of top 100 sites passed
  • This webpage has some warnings caught by the Chrome DevTools Console!
See results list
Charset Declaration Test100% of top 100 sites passed
  • This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Social Media Test80% of top 100 sites passed
  • This webpage is connected successfully with social media using:
Facebook Twitter 
Speed optimizations
Score: 89
Failed: 3
Warnings: 0
Passed: 20
HTML Page Size Test34% of top 100 sites passed
DOM Size Test17% of top 100 sites passed
  • The Document Object Model (DOM) of this webpage has 8,597 nodes which is greater than the recommended value of 1,500 nodes! A large DOM size negatively affects site performance and increases the page load time.
HTML Compression/GZIP Test96% of top 100 sites passed
  • This webpage is successfully compressed using br compression on your code. The HTML code is compressed from 1516.5 Kb to 167.19 Kb (89% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test68% of top 100 sites passed
  • The loading time of this webpage (measured from N. Virginia, US) is around 2.05 seconds and this is under the average loading speed which is 5 seconds.
Accurate loading speed and website loading speed monitor

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JS Execution Time Test79% of top 100 sites passed
  • The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
  • This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Content size by content type
Content type
Percent
Size
javascript
63.7 %
451.37 Kb
html
20.1 %
142.20 Kb
font
6.8 %
48.55 Kb
image
4.3 %
30.75 Kb
other
3.7 %
26.31 Kb
css
1.4 %
9.73 Kb
TOTAL
100%
708.91 Kb
Requests by content type
Content type
Percent
Requests
javascript
49.2 %
30
image
23.0 %
14
other
23.0 %
14
html
1.6 %
1
css
1.6 %
1
font
1.6 %
1
TOTAL
100%
61
Content size by domain
Domain
Percent
Size
backlinko.com
62.2 %
440.66 Kb
googletagmanager.com
22.6 %
160.23 Kb
api.backlinko.com
6.2 %
43.99 Kb
cookiehub.net
5.1 %
36.35 Kb
google-analytics.com
3.0 %
20.94 Kb
rum-static.pingdom.net
0.8 %
5.63 Kb
rum-collector-2.pingdom.net
0.1 %
426 B
google-analytics.bi.owox.com
0.0 %
286 B
stats.g.doubleclick.net
0.0 %
222 B
analytics.google.com
0.0 %
201 B
TOTAL
100%
708.91 Kb
Requests by domain
Domain
Percent
Requests
backlinko.com
47.5 %
29
api.backlinko.com
19.7 %
12
google-analytics.com
8.2 %
5
cookiehub.net
4.9 %
3
google-analytics.bi.owox.com
4.9 %
3
googletagmanager.com
3.3 %
2
stats.g.doubleclick.net
3.3 %
2
rum-static.pingdom.net
3.3 %
2
rum-collector-2.pingdom.net
3.3 %
2
analytics.google.com
1.6 %
1
TOTAL
100%
61
Page Cache Test (Server Side Caching)100% of top 100 sites passed
  • This webpage is using a caching mechanism. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
  • This webpage does not include flash objects (an outdated technology that was sometimes used to deliver rich multimedia content). Flash content does not work well on mobile devices, and is difficult for crawlers to interpret.
CDN Usage Test96% of top 100 sites passed
  • This webpage is serving all images, javascript and css resources from CDNs.
See results list
Modern Image Format Test32% of top 100 sites passed
  • This webpage is using images in a modern format.
Image Metadata Test
  • This webpage is not using images with large metadata.
Image Caching Test99% of top 100 sites passed
  • This webpage is not using uncached images from same domain.
JavaScript Caching Test98% of top 100 sites passed
  • This webpage is using cache headers for all JavaScript resources.
CSS Caching Test98% of top 100 sites passed
  • This webpage is not using uncached CSS resources from same domain!
JavaScript Minification Test93% of top 100 sites passed
  • All JavaScript files used by this webpage are minified.
See results list
CSS Minification Test97% of top 100 sites passed
  • All CSS resources used by this webpage are minified.
See results list
Render Blocking Resources Test29% of top 100 sites passed
  • This webpage is not using render-blocking resources.
Nested Tables Test99% of top 100 sites passed
  • This webpage is not using nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
  • This webpage does not use frames.
Doctype Test100% of top 100 sites passed
  • This webpage has a doctype declaration.
<!DOCTYPE html>
URL Redirects Test96% of top 100 sites passed
  • This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Largest Contentful Paint Test
  • The Largest Contentful Paint duration of this webpage is 0.42 seconds. To provide a good user experience, sites should strive to have Largest Contentful Paint of 2.5 seconds or less.

0.42 s

2.5 s

4 s

Largest Contentful Paint element within the viewport:
<img class="a3-notlazy" title="On-page SEO: The Definitive Guide" alt="On-page SEO: The Definitive Guide" data-aspect-ratio="1" src="https://api.backlinko.com/app/uploads/2020/01/on-p..." loading="eager" decoding="async">
Cumulative Layout Shift Test
  • The CLS score of this webpage is 0.0. To provide a good user experience, sites should strive to have a CLS score of 0.1 or less.

0.0001

0.1

0.25

DOM element which contributes the most to CLS score:
Html: <li>
Score: 0.0001
Server and security
Score: 93
Failed: 1
Warnings: 0
Passed: 9
URL Canonicalization Test92% of top 100 sites passed
SSL Checker and HTTPS Test100% of top 100 sites passed
  • This website is successfully using HTTPS, a secure communication protocol over the Internet.

The certificate is not used before the activation date.

The certificate has not expired.

The hostname "backlinko.com" is correctly listed in the certificate.

The certificate should be trusted by all major web browsers.

The certificate was not revoked.

The certificate was signed with a secure hash.

Certificate Chain:
Server certificate
Common name
*.backlinko.com
Subject Alternative Names (SANs)
*.backlinko.com, backlinko.com
Not valid before
Wed, July 12o 2023, 1:01:40 pm (z)
Not valid after
Tue, October 10o 2023, 1:01:39 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
R3
Intermediate certificate
Common name
R3
Organization
Let's Encrypt
Location
US
Not valid before
Fri, September 4o 2020, 12:00:00 am (z)
Not valid after
Mon, September 15o 2025, 4:00:00 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
ISRG Root X1
Root certificate
Common name
ISRG Root X1
Organization
Internet Security Research Group
Location
US
Not valid before
Thu, June 4o 2015, 11:04:38 am (z)
Not valid after
Mon, June 4o 2035, 11:04:38 am (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
ISRG Root X1
Mixed Content Test (HTTP over HTTPS)100% of top 100 sites passed
  • This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test92% of top 100 sites passed
  • This webpage is using the HTTP/2 protocol.
HSTS Test
  • This webpage is using the Strict-Transport-Security header.
strict-transport-security: max-age=31536000
Safe Browsing Test100% of top 100 sites passed
  • This website is not currently listed as suspicious (no malware or phishing activity found).
Server Signature Test88% of top 100 sites passed
  • The server signature is off for this webpage.
Directory Browsing Test100% of top 100 sites passed
  • Directory browsing is disabled for this website.
Plaintext Emails Test93% of top 100 sites passed
  • This webpage does not include email addresses in plaintext.
Mobile usability
Score: 100
Failed: 0
Warnings: 0
Passed: 3
Meta Viewport Test94% of top 100 sites passed
  • This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
Media Query Responsive Test99% of top 100 sites passed
  • This webpage is using CSS media queries, which is the base for responsive design functionalities.
Mobile Snapshot Test
Mobile view
Advanced SEO
Score: 90
Failed: 2
Warnings: 1
Passed: 6
Structured Data Test59% of top 100 sites passed
  • This webpage is using structured data.
See results list
Custom 404 Error Page Test75% of top 100 sites passed
  • This website is using a custom 404 error page. We recommend to have a custom 404 error page in order to improve the website's user experience by letting users know that only a specific page is missing/broken (and not the entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links.
Noindex Tag Test99% of top 100 sites passed
  • This webpage does not use the noindex meta tag. This means that it can be indexed by search engines.
Canonical Tag Test95% of top 100 sites passed
  • This webpage is using the canonical link tag. This tag specifies that the URL: https://backlinko.com/on-page-seo is preferred to be used in search results. Please ensure that this specification is correct, as canonical tags are often hard-coded and may not always reflect the latest changes in a site's URL structure.
<link href="https://backlinko.com/on-page-seo" rel="canonical"/>
Nofollow Tag Test
  • This webpage is using the nofollow meta tag! We recommend to use this tag carefully since search engines will not crawl all links from this webpage.
See results list
Disallow Directive Test
  • Your robots.txt file includes a disallow command which instructs search engines to avoid certain parts of your website! You are advised to confirm if access to these resources or pages are intended to be blocked (e.g., if they contain internal-only content or sensitive information).
See results list
Meta Refresh Test95% of top 100 sites passed
  • This webpage is not using a meta refresh tag.
SPF Records Test94% of top 100 sites passed
  • This DNS server is not using an SPF record! SPF (Sender Policy Framework) allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record or TXT record in the Domain Name System (DNS). You can find more information about SPF records here.
Ads.txt Validation Test80% of top 100 sites passed
  • This website doesn't use an ads.txt file! Ads.txt is a text file that contains a list of Authorized Digital Sellers. The purpose of ads.txt files is to give advertisers and advertising networks the ability to verify who is allowed to sell advertising on your website.
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