Julialang.org - SEO Checker

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Overview of the SEO Check
Meta information
83% 
Page quality
90% 
Page structure
58% 
Link structure
71% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.06 s
File size
43.00 kB
Words
1160
Media files
24
Number of links
42 internal / 166 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The Julia Programming Language
The length of the page title is perfect. (301 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The official website for the Julia Language. Julia is a language that is fast, dynamic, easy to use, and open source. Click here to learn more.
There are more than one meta descriptions on the page. Only one is allowed.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
authorJeff Bezanson, Stefan Karpinski, Viral Shah, Alan Edelman, et al.
descriptionWatch what unfolded at JuliaCon 2024 here. The latest developments, optimizations, and features happen right here, at JuliaCon.
robotsmax-image-preview:large
google-site-verification9VDSjBtchQj6PQYIVwugTPY7pVCfLYgvkXiRHjc_Bzw
p:domain_verify6a650661a1683e503c6331daf1155d17
langen
twitter:site:id1237720952
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 8.89 words is low.
This page contains 1160 words. That's ok.
29.2% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
19 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 23 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
https://julialang.org/assets/infra/logo.svgJuliaLang Logo
/assets/infra/minesweeper.pngminesweeper gameover
/assets/infra/parallel-prefix.pngparallel prefix graphical result
/assets/infra/cartpole.gifcartpole reinforcement learning problem visualization
/assets/infra/lorenz.gifLorenz Attractor visualization
/assets/infra/onlinestats.gifVisualization of weighted data changing as more data is plotted
/assets/infra/waves.gifVisualization of waves in 3D, as a heatmap, and on the x y axis
/assets/infra/discourse.svgDiscourse Logo
/assets/infra/github.svgGitHub Logo
/assets/infra/zulip.svgZulip Logo
/assets/infra/slack.pngSlack Logo
/assets/infra/twitter.svgTwitter Logo
/assets/infra/youtube.svgYouTube Logo
/assets/infra/linkedin.pngLinkedIn Logo
/assets/infra/twitch.pngTwitch Logo
/assets/infra/vscode.pngVSCode Logo
/assets/infra/jupyter.svgJupyter Logo
/assets/infra/pluto_jl.svgPluto.jl Logo
https://julialang.org/assets/infra/vim.pngVim Logo
/assets/infra/emacs.pngEmacs Logo
/assets/infra/Debug.pngDebugger
/assets/infra/profile.pngProfiler Logo
/assets/infra/revise.pngRevise Logo
https://julialang.org/assets/infra/gpu.pngJulia GPU Logo

Page structure

H1 heading
(Critically important)
The Julia Programming Language
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.
There are 65 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 The Julia Programming Language
H2 Julia in a Nutshell
H2 Ecosystem
H2 JuliaCon 2024
H2 Packages
H2 Recent Blog Posts
H2 Talk to us
H2 Editors and IDEs
H2 Essential Tools
H3 Fast
H3 Dynamic
H3 Reproducible
H3 Composable
H3 General
H3 Open source
H3 General Computing
H3 Parallel Computing
H3 Machine Learning
H3 Scientific Computing
H3 Data Science
H3 Visualization
H3 This Month in Julia World
H3 This Month in Julia World Duplicate text
H3 This Month in Julia World Duplicate text
H3 Discourse
H3 GitHub
H3 Zulip
H3 Slack
H3 Twitter
H3 Videos
H3 LinkedIn
H3 Twitch
H3 VS Code
H3 Jupyter
H3 Pluto.jl
H3 Vim
H3 Emacs
H3 Debugger
H3 Profiler
H3 Revise
H3 GPUs
H4 Build, Deploy or Embed Your Code
H4 Parallel and Heterogeneous Computing
H4 Scalable Machine Learning
H4 Rich Ecosystem for Scientific Computing
H4 Interact with your Data
H4 Data Visualization and Plotting
H4 Discourse Duplicate text
H4 Source code
H4 Zulip Duplicate text
H4 Slack Duplicate text
H4 #JuliaLang
H4 YouTube
H4 LinkedIn Duplicate text
H4 Twitch Duplicate text
H4 VS Code Extension
H4 Jupyter kernel
H4 Simple reactive notebooks
H4 Vim plugin
H4 Emacs plugin
H4 Debugger.jl
H4 Profile (Stdlib)
H4 Revise.jl
H4 JuliaGPU
H5 Lorenz Attractor in Julia
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (166) on this page.

Found links on this page

LinkAttributesAnchor text
https://juliacon.org/2025/cfp/External JuliaCon 2025 Call For Proposals
https://julialang.org/IMG-ALT JuliaLang Logo
https://julialang.org/install/Install
https://docs.julialang.org/External Subdomain Docs
https://julialang.org/learning/Learn
https://julialang.org/blog/Blog
https://julialang.org/community/Community
https://julialang.org/contribute/Contribute
https://julialang.org/jsoc/JSoC
https://github.com/JuliaLang/j...External Star
https://github.com/sponsors/ju...External Sponsor
https://julialang.org/install/Text duplicate Install
https://docs.julialang.org/External Subdomain Text duplicate Docs
https://github.com/JuliaLang/j...External Text duplicate Star
https://julialang.org/benchmarks/high performance
https://julialang.org/downloads/multiple platforms
https://docs.julialang.org/en/...External Subdomain dynamically typed
https://docs.julialang.org/en/...External Subdomain interactive
https://julialang.github.io/Pk...External Subdomain Reproducible environments
https://binarybuilder.org/External pre-built binaries
https://docs.julialang.org/en/...External Subdomain multiple dispatch
https://docs.julialang.org/en/...External Subdomain functional
https://www.youtube.com/watch?...External Subdomain Unreasonable Effectiveness of Multiple Dispatch
https://docs.julialang.org/en/...External Subdomain asynchronous I/O
https://docs.julialang.org/en/...External Subdomain metaprogramming
https://github.com/JuliaDebug/...External debugging
https://docs.julialang.org/en/...External Subdomain logging
https://docs.julialang.org/en/...External Subdomain profiling
https://docs.julialang.org/en/...External Subdomain package manager
https://www.youtube.com/watch?...External Subdomain Applications and Microservices
https://github.com/JuliaLang/j...External MIT license
https://github.com/JuliaLang/j...External source code
https://julialang.org/Anchor Visualization
https://julialang.org/Anchor General Purpose
https://julialang.org/Anchor Data Science
https://julialang.org/Anchor Machine Learning
https://julialang.org/Anchor Scientific Domains
https://julialang.org/Anchor Parallel Computing
https://github.com/plotly/Dash.jlExternal Dash.jl
https://github.com/GenieFramew...External Genie.jl
https://github.com/JuliaGtk/Gt...External Gtk4.jl
https://juliadatabases.org/External a variety of databases
https://github.com/JuliaLang/P...External PackageCompiler
https://github.com/JuliaWeb/HT...External HTTP.jl
https://docs.julialang.org/en/...External Subdomain managing other processes
https://docs.julialang.org/en/...External Subdomain C, Fortran
https://github.com/JuliaIntero...External C++
https://github.com/JuliaPy/Pyt...External Python
https://github.com/JuliaIntero...External R
https://github.com/JuliaIntero...External Java
https://github.com/JuliaIntero...External Mathematica
https://github.com/JuliaIntero...External Matlab
https://docs.julialang.org/en/...External Subdomain embedding API
https://github.com/JuliaLang/P...External Text duplicate PackageCompiler
https://github.com/JuliaPy/Pyt...External juliacall
https://cran.r-project.org/web...External Subdomain R's JuliaCall
https://rpubs.com/dmbates/377897External calling MixedModels.jl from R
https://reference.wolfram.com/...External Subdomain calling Julia through its External Evaluation System
https://github.com/chriselrod/...External instruction level parallelism
https://docs.julialang.org/en/...External Subdomain multi-threading
https://juliagpu.org/External GPU computing
https://docs.julialang.org/en/...External Subdomain distributed computing
https://github.com/jeff-regier...External Celeste.jl
https://arxiv.org/pdf/1801.102...External achieved 1.5 PetaFLOP/s
A-TITLE PDF paper on Cataloging the Visible Universe through Bayesian Inference at Petascale hosted on arxiv.org
https://cs.lbl.gov/news-media/...External Subdomain Cori supercomputer at NERSC
https://juliagpu.org/External GPUs
https://github.com/JuliaParall...External DistributedArrays.jl
https://github.com/JuliaParall...External Dagger.jl
https://github.com/JuliaParall...External Elemental.jl
https://github.com/JuliaLinear...External TSVD.jl
https://github.com/JuliaParall...External MPI.jl
https://github.com/JuliaAI/MLJ.jlExternal MLJ.jl
https://github.com/JuliaStats/...External generalized linear models
https://github.com/dmlc/XGBoos...External decision trees
https://github.com/JuliaStats/...External clustering
https://github.com/FluxML/Flux.jlExternal Flux.jl
https://github.com/LuxDL/Lux.jlExternal Lux.jl
https://github.com/FluxML/Meta...External Metalhead.jl
https://github.com/r3tex/Objec...External ObjectDetector.jl
https://github.com/JuliaText/T...External TextAnalysis.jl
https://github.com/jonathan-la...External AlphaZero.jl
https://turinglang.org/External Turing.jl
https://github.com/SciML/Diffe...External (DifferentialEquations.jl)
https://github.com/jump-dev/Ju...External JuMP.jl
https://github.com/SciML/Optim...External Optimization.jl
https://github.com/JuliaSmooth...External Krylov.jl
https://github.com/SciML/Linea...External LinearSolve.jl
https://github.com/JuliaMath/A...External (AbstractFFTs.jl)
https://sciml.ai/External Scientific Machine Learning
https://github.com/QuantumBFS/...External Quantum computing
https://github.com/BioJuliaExternal (BioJulia)
https://jump.dev/External (JuMP Dev)
https://juliaimages.github.io/...External Subdomain (JuliaImages)
https://github.com/QuantumBFSExternal (QuantumBFS)
https://github.com/JuliaDynamicsExternal (JuliaDynamics)
https://github.com/QuantEconExternal (QuantEcon)
https://juliaastro.github.io/External Subdomain (JuliaAstro)
https://github.com/EcoJuliaExternal (EcoJulia)
https://github.com/JuliaData/D...External DataFrames.jl
https://github.com/JuliaData/C...External CSV.jl
https://github.com/JuliaData/A...External Arrow.jl
https://github.com/joshday/Onl...External OnlineStats.jl
https://www.queryverse.org/External Subdomain Queryverse
https://juliagraphs.org/External JuliaGraphs
https://github.com/JuliaDataba...External JDBC.jl
https://github.com/JuliaDataba...External ODBC.jl
https://github.com/dfdx/Spark.jlExternal Spark.jl
https://github.com/JuliaPlots/...External Plots.jl
https://docs.juliaplots.org/la...External Subdomain backends
https://github.com/jheinen/GR.jlExternal GR.jl
https://github.com/JuliaPy/PyP...External PyPlot.jl
https://github.com/JuliaPlots/...External PlotlyJS.jl
https://github.com/MakieOrg/Ma...External Makie.jl
https://github.com/GiovineItal...External Gadfly.jl
https://github.com/queryverse/...External VegaLite.jl
https://vega.github.io/vega-lite/External Subdomain Vega-Lite
https://github.com/Evizero/Uni...External UnicodePlots.jl
https://www.youtube.com/user/J...External Subdomain Julia Channel on YouTube
https://www.youtube.com/playli...External Subdomain JuliaCon 2024 videos
https://julialang.org/packages/Packages
https://juliahub.com/ui/PackagesExternal over 10,000 Julia packages
https://github.com/JuliaPy/PyC...External Text duplicate Python
https://github.com/JuliaIntero...External Text duplicate R
https://docs.julialang.org/en/...External Subdomain Anchor C/Fortran
https://github.com/Keno/Cxx.jlExternal Text duplicate C++
https://github.com/JuliaIntero...External Text duplicate Java
https://discourse.julialang.org/External Subdomain Discourse
https://julialang.github.io/Pk...External Subdomain contribute one
https://juliahub.com/ui/PackagesExternal JuliaHub: Package Search
https://juliapackages.com/tren...External JuliaPackages: Trending
https://julialang.zulipchat.com/External Subdomain Anchor Feed of new Julia packages
/blog/2025/05/this-month-in-ju...This Month in Julia World
/blog/2025/04/this-month-in-ju...Text duplicate This Month in Julia World
/blog/2025/03/this-month-in-ju...Text duplicate This Month in Julia World
https://julialang.org/blog/Visit Blog
https://forem.julialang.org/External Subdomain View Community Posts
https://discourse.julialang.org/New window External Subdomain IMG-ALT Discourse Logo
https://discourse.julialang.org/New window External Subdomain Text duplicate Discourse
https://github.com/JuliaLang/j...New window External IMG-ALT GitHub Logo
https://github.com/JuliaLang/j...New window External Source code
https://julialang.zulipchat.com/New window External Subdomain IMG-ALT Zulip Logo
https://julialang.zulipchat.com/New window External Subdomain Zulip
https://julialang.org/slack/New window IMG-ALT Slack Logo
https://julialang.org/slack/New window Slack
https://twitter.com/JuliaLanguageNew window External IMG-ALT Twitter Logo
https://twitter.com/JuliaLanguageNew window External #JuliaLang
https://www.youtube.com/user/J...New window External Subdomain IMG-ALT YouTube Logo
https://www.youtube.com/user/J...New window External Subdomain YouTube
https://www.linkedin.com/compa...New window External Subdomain IMG-ALT LinkedIn Logo
https://www.linkedin.com/compa...New window External Subdomain LinkedIn
https://www.twitch.tv/JuliaLan...New window External Subdomain IMG-ALT Twitch Logo
https://www.twitch.tv/JuliaLan...New window External Subdomain Twitch
https://www.julia-vscode.org/New window External Subdomain IMG-ALT VSCode Logo
https://www.julia-vscode.org/New window External Subdomain VS Code Extension
https://github.com/JuliaLang/I...New window External IMG-ALT Jupyter Logo
https://github.com/JuliaLang/I...New window External Jupyter kernel
https://plutojl.org/New window External IMG-ALT Pluto.jl Logo
https://plutojl.org/New window External Simple reactive notebooks
https://github.com/JuliaEditor...New window External IMG-ALT Vim Logo
https://github.com/JuliaEditor...New window External Vim plugin
https://github.com/JuliaEditor...New window External IMG-ALT Emacs Logo
https://github.com/JuliaEditor...New window External Emacs plugin
https://github.com/JuliaDebug/...New window External IMG-ALT Debugger
https://github.com/JuliaDebug/...New window External Debugger.jl
https://docs.julialang.org/en/...New window External Subdomain IMG-ALT Profiler Logo
https://docs.julialang.org/en/...New window External Subdomain Profile (Stdlib)
https://github.com/timholy/Rev...New window External IMG-ALT Revise Logo
https://github.com/timholy/Rev...New window External Revise.jl
https://juliagpu.org/New window External IMG-ALT Julia GPU Logo
https://juliagpu.org/New window External JuliaGPU
https://julialang.org/projectAbout
https://julialang.org/about/helpGet Help
https://julialang.org/governance/Governance
https://julialang.org/research/Publications
/community/sponsors/Sponsors
https://julialang.org/install/Text duplicate Install
https://julialang.org/downloads/Manual Downloads
https://github.com/JuliaLang/j...External Source Code
https://julialang.org/downloads/Current Stable Release
https://julialang.org/downloads/Longterm Support Release
https://docs.julialang.org/en/v1/External Subdomain Documentation
https://juliaacademy.com/External JuliaAcademy
https://www.youtube.com/user/J...External Subdomain Text duplicate YouTube
/learning/getting-started/Getting Started
https://docs.julialang.org/en/...External Subdomain FAQ
/learning/booksBooks
https://julialang.org/community/Text duplicate Community
/community/standards/Code of Conduct
/community/stewards/Stewards
https://julialang.org/diversity/Diversity
https://juliagenderinclusive.g...External Subdomain Julia Gender Inclusive
https://juliacon.org/External JuliaCon
https://julialang.org/community/User/Developer Survey
https://julialang.org/shop/Shop Merchandise
https://github.com/JuliaLang/j...External Contributing
https://julialang.org/contributeContributor's Guide
https://github.com/JuliaLang/j...External Issue Tracker
https://github.com/JuliaLang/j...External Report a Security Issue
https://github.com/search?q=is...External Help Wanted Issues
https://github.com/search?q=is...External Good First Issue
https://docs.julialang.org/en/...External Subdomain Dev Docs
https://www.netlify.com/External Subdomain Netlify
https://franklinjl.org/External Franklin.jl
https://julialang.org/Julia Programming Language
https://www.fastly.com/External Subdomain Fastly
https://github.com/JuliaLang/w...External contributors
https://github.com/JuliaLang/w...External Text duplicate MIT license
https://github.com/sponsors/ju...External Text duplicate Sponsor

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://julialang.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.06 seconds.
The file size of the HTML document is fine (43 kB).

HTTP Response Header

NameValue
serverGitHub.com
content-typetext/html; charset=utf-8
last-modifiedThu, 15 May 2025 15:45:58 GMT
access-control-allow-origin*
etagW/"68260c36-ac17"
expiresFri, 16 May 2025 20:53:33 GMT
cache-controlmax-age=600
content-encodinggzip
x-proxy-cacheMISS
x-github-request-id60FE:1F253E:137AB9:13ADC1:6827A375
via1.1 varnish, 1.1 varnish
x-fastly-request-ide0491510676923a1b2bc7d7266dfc7c0da891fe1
fastly-debug-statesDELIVER
accept-rangesbytes
age159
dateFri, 16 May 2025 21:11:12 GMT
x-served-bycache-fra-etou8220110-FRA, cache-fra-etou8220087-FRA
x-cacheMISS, HIT
x-cache-hits0, 0
x-timerS1747429872.180369,VS0,VE3
varyAccept-Encoding
strict-transport-securitymax-age=5356800
content-length10886
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 3,308 referring domains.
This page has 37,387 backlinks.
This page has backlinks from 2,264 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

Sitemap: https://julialang.org/sitemap.xml

User-agent: *
Disallow:

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julialang.org
The Julia Programming Language
The official website for the Julia Language. Julia is a language that is fast, dynamic, easy to use, and open source. Click here to learn more.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Julia91%Check
Julia Language83%Check
Julia Programming78%Check
Julia Programming Language76%Check
Language73%Check
Programming Language68%Check
Julia packages66%Check
Julia programs64%Check
Programming62%Check
Learn56%Check
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