Search Engine Optimization Overview
86
100
Kotlin Programming Language
Seo
Title
The title tag is perfect.
Kotlin Programming Language
Meta description
The meta description tag is missing or empty.
Headings
The headings are properly set.
  1. A modern programming language that makes developers happier.
  1. Try Kotlin
  2. Latest from Kotlin
  3. Why Kotlin
  4. Kotlin Usage Highlights
  5. Start using Kotlin today! Build your first app in your favorite IDE
  1. Multiplatform Mobile
  2. Server-side
  3. Web Frontend
  4. Android
  5. Kotlin 1.7.20-Beta Released ↗
  6. KotlinConf returns to Amsterdam in April 2023! ↗
  7. A New Approach to Incremental Compilation in Kotlin ↗
  8. Kotlin News: KotlinConf, Build Reports, DataFrame Preview, and More ↗
  9. Modern, concise and safe programming language
  10. A productive way to write server‑side applications
  11. Cross-platform layer for native applications
  12. Big, friendly and helpful community
  13. Gradle
  14. Corda
  15. Evernote
  16. Coursera
  17. Spring
  18. Atlassian
Content keywords
The content has relevant keywords.
kotlinprogramminglanguage
Image keywords
All images have alt attributes set.
SEO friendly URL
The URL is SEO friendly.
https://kotlinlang.org/
404 page
The website has 404 error pages.
https://kotlinlang.org/404-d677fddffdfa326018d0428a5172a8e5
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://kotlinlang.org/assets/images/apple-touch-icon-144x144.png?&v=73ddf35e504822ad0deb51e244d8fc9d
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.51 seconds.
Page size
The size of the HTML webpage is 13,647.00.
HTTP requests
There are fewer than 13 HTTP requests on the webpage.
  1. https://kotlinlang.org/_assets/shared.js?&v=1b80b96fc6fcd67040b77621857c6121
  2. https://kotlinlang.org/_assets/common.js?&v=f4a0deea8377e56fd2fdf1c6fa4aa660
  3. https://kotlinlang.org/_assets/index.js?&v=96442f671bbffa41cc1f4c5e603fa502
  1. https://kotlinlang.org/_assets/styles-v2.css?&v=ccac1501cf048cb16da2f01204f15d08
  2. https://kotlinlang.org/_assets/index.css?&v=ba5f91f75bbcec20e9d6390a01d51876
  3. https://kotlinlang.org/_assets/shared.css
  4. https://kotlinlang.org/_assets/common.css?&v=c58ca4720f6b3a6bb236db659010ea70
  1. https://kotlinlang.org/assets/jetbrains-logo.svg
  2. https://kotlinlang.org/assets/images/index/banners/kotlin-1.7.20.jpg
  3. https://kotlinlang.org/assets/images/index/multiplatform.svg
  1. https://www.googletagmanager.com/ns.html?id=GTM-5P98
  2. https://www.youtube-nocookie.com/embed/8xAH7RU0Y44
  3. https://www.youtube-nocookie.com/embed/JGvk4M0Rfxo
Image format
There are 1 images that are not using the AVIF, WebP format.
  1. https://kotlinlang.org/assets/images/index/banners/kotlin-1.7.20.jpg
JavaScript defer
The are 3 javascript resources without the defer attribute.
  1. https://kotlinlang.org/_assets/shared.js?&v=1b80b96fc6fcd67040b77621857c6121
  2. https://kotlinlang.org/_assets/common.js?&v=f4a0deea8377e56fd2fdf1c6fa4aa660
  3. https://kotlinlang.org/_assets/index.js?&v=96442f671bbffa41cc1f4c5e603fa502
DOM size
The DOM size is optimal.
The HTML file has 346 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://kotlinlang.org/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
AmazonS3
Unsafe cross-origin links
The webpage has 30 unsafe cross-origin links.
Plaintext email
The webpage contains plaintext emails.
  1. alice@mycompany.com
  2. alice@example.com
Miscellaneous
Structured data
The webpage has structured data.
      Meta viewport
      The webpage has a meta viewport tag set.
      width=device-width, initial-scale=1
      Character set
      The webpage has a charset value set.
      utf-8
      Sitemap
      The website has sitemaps.
      1. https://kotlinlang.org/sitemap.xml
      Content length
      The webpage has 1,426 words.
      Text to HTML ratio
      The text to HTML ratio is 20%.
      Inline CSS
      The webpage does not contain inline CSS code.
      Deprecated HTML
      There are no deprecated HTML tags on the webpage.