Cfd-online.com - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
81% 
Page quality
51% 
Page structure
58% 
Link structure
25% 
Server
45% 
External factors
100% 
SEO Score
Response time
0.04 s
File size
32.70 kB
Words
617
Media files
8
Number of links
310 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
CFD Online
The page title is too short. (107 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
An online center for Computational Fluid Dynamics. This is the largest CFD site on the net with services like discussion forums, jobs, links and a wiki.
The length of the meta description is perfect. (919 pixels out of 1000 max pixel length)
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-us
Server location: United States of America
The following language is defined by HTML: en-us
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 character encoding is not specified in the HTTP header.
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype XHTML 1.0 Transitional 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
descriptionAn online center for Computational Fluid Dynamics. This is the largest CFD site on the net with services like discussion forums, jobs, links and a wiki.
keywordsCFD, computational fluid dynamics, fluid, flow, simulation, Navier-Stokes, gas, turbulence, numerical, thermodynamics, jobs, heat transfer, fluid mechanics, combustion, multiphase, multigrid, unstructured, adaptive, forum, research, science, aerodynamics, hydrodynamics, directory, fluent, cfx, icem
langen-us
Content-Typetext/html; charset=UTF-8

Test up to 1.000 webpages of cfd-online.com with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
No paragraphs were detected.
This page contains 617 words. That's ok.
10.7% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 12 tags for this page.
Image SEO
(Somewhat important)
5 images have no alt attribute. The content of alt attributes is used by search engines.
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
/Images/new_cfdonline_logo_main_star.gifCFD Online Logo
/Images/new_cfdonline_logo_main_name.gifCFD Online URL
/Images/new_cfdonline_logo_home.gifwww.cfd-online.com
https://cfd-online.com/Images/new.gifNo alt attribute provided
https://cfd-online.com/Images/new.gifNo alt attribute provided
/Images/mastodon_grey.gifNo alt attribute provided
/Images/twitter_grey.gifNo alt attribute provided
/Images/facebook_grey.gifNo alt attribute provided

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
There are 4 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://cfd-online.com/IMG-ALT www.cfd-online.com
/About/sponsors.phpSponsors
https://cfd-online.com/Home
/Forum/news.cgiNews
/Forum/news.cgiIndex
/Forum/news.cgi?form=0Post News
/Forum/news.cgi?subscribeSubscribe/Unsubscribe
https://cfd-online.com/Forums/Forums
/Forums/main/Main CFD Forum
/Forums/system-analysisSystem Analysis
/Forums/structural-mechanicsStructural Mechanics
/Forums/electromagneticsElectromagnetics
/Forums/cfd-freelancersCFD Freelancers
/Forums/hardware/Hardware Forum
/Forums/lounge/Lounge
/Forums/software/Software User Forums
/Forums/ansys/ANSYS
/Forums/cfx/CFX
/Forums/fluent/FLUENT
/Forums/ansys-meshing/Meshing & Geometry
/Forums/autodesk-simulation-cfd/Autodesk
/Forums/avl-fire/AVL FIRE
/Forums/comsol/COMSOL
/Forums/converge/CONVERGE
/Forums/fidelity-cfd/Fidelity CFD
/Forums/floefd-floworks-flothermFloEFD & FloTHERM
/Forums/flow-3d/FLOW-3D
/Forums/openfoam/OpenFOAM
/Forums/openfoam-news-announce...News & Announcements
/Forums/openfoam-installation/Installation
/Forums/openfoam-meshing/Meshing
/Forums/openfoam-pre-processing/Pre-Processing
/Forums/openfoam-solving/Solving
/Forums/openfoam-post-processing/Post-Processing
/Forums/openfoam-programming-d...Programming
/Forums/openfoam-verification-...Verification & Validation
/Forums/openfoam-community-con...Community Contributions
/Forums/openfoam-journal/Journal
/Forums/openfoam-bugs/Bugs
/Forums/phoenics/Phoenics
/Forums/reef3d/REEF3D
/Forums/reef3d-news-announceme...Text duplicate News & Announcements
/Forums/siemens/Siemens
/Forums/star-ccm/STAR-CCM+
/Forums/star-cd/STAR-CD
/Forums/su2/SU2
/Forums/su2-news-announcements/Text duplicate News & Announcements
/Forums/su2-installation/Text duplicate Installation
/Forums/su2-shape-design/Shape Design
/Forums/pre-processors/Pre-processors
/Forums/ansa/ANSA
/Forums/engrid/enGrid
/Forums/gridpro/GridPro
/Forums/pointwise/Pointwise
/Forums/post-processors/Post-Processors
/Forums/ensight/EnSight
/Forums/fieldview/FieldView
/Forums/paraview/ParaView
/Forums/tecplot/Tecplot
/Forums/special-topics/Special Topics
/Forums/mesh-generation/Mesh Generation
/Forums/visualization/Visualization
/Forums/community/CFD Online Community
/Forums/site-news-announcements/Site News
/Forums/site-help-feedback-dis...Site Help & Discussions
/Forums/cfd-wiki/CFD-Wiki
/Wiki/Main_PageWiki
/Wiki/CFD-Wiki:IntroductionIntroduction
/Wiki/Special:RecentchangesRecent Changes
/Wiki/Reference_sectionReference Section
/Wiki/Fluid_dynamicsFluid Dynamics
/Wiki/Turbulence_modelingTurbulence Modeling
/Wiki/Numerical_methodsNumerical Methods
/Wiki/MeshingText duplicate Meshing
/Wiki/Special_topicsText duplicate Special Topics
/Wiki/Aero-acoustics_and_noiseAero-Acoustics
/Wiki/CombustionCombustion
/Wiki/Parallel_computingParallel Computing
/Wiki/TurbulenceTurbulence
/Wiki/Application_areasApplication Areas
/Wiki/AerospaceAerospace
/Wiki/AutomotiveAutomotive
/Wiki/TurbomachineryTurbomachinery
/Wiki/Best_practice_guidelinesBest Practice Guides
/Wiki/Best_practice_guidelines...Automotive CFD
/Wiki/Best_practice_guidelines...Turbomachiney CFD
/Wiki/Best_practice_guidelines...Heat Transfer CFD
/Wiki/Validation_and_test_casesValidation Cases
https://cfd-online.com/Wiki/CodesCodes
/Wiki/Source_code_archiveSource Code Archive
https://cfd-online.com/Wiki/FAQ'sFAQ's
/Wiki/Ansys_FAQAnsys
/Wiki/CHAM_FAQCHAM
/Wiki/CONVERGE_FAQText duplicate CONVERGE
/Wiki/Fluent_FAQFluent
/Wiki/Metacomp_FAQMetaconp
/Wiki/MeteoDyn_FAQMeteoDyn
/Wiki/Siemens_FAQText duplicate Siemens
/Wiki/History_of_CFDHistory of CFD
/Wiki/CFD-Wiki:AboutAbout CFD-Wiki
/Wiki/Help:ContentsHelp
/Wiki/CFD-Wiki:FAQFAQ
/Wiki/CFD-Wiki:Contribute_some...Getting Started
/Wiki/CFD-Wiki:Community_PortalCommunity Portal
/Wiki/CFD-Wiki:Donate_textsDonate Texts
/Wiki/CFD-Wiki:Donated_textsDonated Texts
https://cfd-online.com/Links/Links
/Links/whatsnew.htmlWhat's New
/Links/intro.htmlText duplicate Introduction
/Links/modeling_and_numerics.htmlModeling & Numerics
/Links/modeling_and_numerics.htmlText duplicate Turbulence
/Links/modeling_and_numerics.htmlText duplicate Combustion
/Links/modeling_and_numerics.htmlDiscretization Schemes
/Links/modeling_and_numerics.htmlSolvers
/Links/modeling_and_numerics.htmlMultigrid Methods
/Links/modeling_and_numerics.htmlFinite Element Methods
/Links/modeling_and_numerics.htmlCartesian Methods / AMR
/Links/modeling_and_numerics.htmlNumerial Analysis
/Links/meshing.htmlText duplicate Mesh Generation
/Links/meshing.htmlGeneral Resources
/Links/meshing.htmlSelected Projects
/Links/meshing.htmlCompanies
/Links/programming.htmlProgramming & Dev.
/Links/programming.htmlData Formats
/Links/programming.htmlSoftware Libraries
/Links/soft.htmlNumerical Software
/Links/programming.htmlText duplicate Parallel Computing
/Links/programming.htmlGeneral Sites
/Links/soft.htmlSoftware
/Links/soft.htmlText duplicate Fluid Dynamics
/Links/soft.htmlText duplicate Mesh Generation
/Links/soft.htmlText duplicate Visualization
/Links/soft.htmlCommercial CFD Codes
/Links/hard.htmlHardware
/Links/hard.htmlBenchmarks
/Links/hard.htmlNews and Reviews
/Links/hard.htmlHardware Vendors
/Links/hard.htmlClouds
/Links/hard.htmlClusters
/Links/hard.htmlGPGPU
/Links/hard.htmlMisc
/Links/refs.htmlReferences
/Links/refs.htmlText duplicate Validation Cases
/Links/refs.htmlAirfoils
/Links/refs.htmlMaterial Properties
/Links/refs.htmlGlossaries
/Links/finddocs.htmlFinding Documents
/Links/finddocs.htmlPreprints Online
/Links/finddocs.htmlPapers & Reports
/Links/finddocs.htmlBooks
/Links/finddocs.htmlJournals
/Links/finddocs.htmlPublishers
/Links/tools.htmlOnline Tools
/Links/tools.htmlUnit Converters
/Links/tools.htmlCalculators
/Links/tools.htmly+ Estimation
/Links/tools.htmlCompressible Flow
/Links/tools.htmlHeat Transfer
/Links/tools.htmlAirfoil Generators
/Links/tools.htmlSimple Cases
/Links/tools.htmlText duplicate Combustion
/Links/tools.htmlCycles & Processes
/Links/onlinedocs.htmlOnline Books & Guides
/Links/onlinedocs.htmlCFD Introductions
/Links/onlinedocs.htmlText duplicate Books
/Links/onlinedocs.htmlBest Practice Guidelines
/Links/onlinedocs.htmlFluid & Aero Dynamics
/Links/onlinedocs.htmlSeminars
/Links/onlinedocs.htmlEncyclopedias
/Links/cmc.htmlSocial Media
/Links/cmc.htmlDiscussion Forums
/Links/cmc.htmlBlogs
/Links/cmc.htmlTwitter
/Links/cmc.htmlYouTube
/Links/cmc.htmlFacebook
/Links/cmc.htmlLinkedIn
/Links/cmc.htmlPodcasts
/Links/cmc.htmlUsenet Newsgroups
/Links/cmc.htmlMailing Lists
/Links/cmc.htmlChats
/Links/cmc.htmlText duplicate News
/Links/education.htmlEducation
/Links/education.htmlCFD Programmes
/Links/education.htmlOnline Labs
/Links/education.htmlOnline Courses
/Links/education.htmlCourse Material
/Links/jobs.htmlJobs
/Links/jobs.htmlCFD Job Resources
/Links/jobs.htmlCompanies & Orgs.
/Links/jobs.htmlText duplicate General Resources
/Links/events.htmlEvents
/Links/events.htmlEvent Calendars
/Links/events.htmlSpecific Organizations
/Links/events.htmlVendor Events Lists
/Links/misc.htmlText duplicate Misc
/Links/misc.htmlPictures and Movies
/Links/misc.htmlFun
/Links/links.htmlLinks to Links
/Links/suggest_link.phpSuggest New Link
/Links/about.htmlAbout this Section
https://cfd-online.com/Jobs/Text duplicate Jobs
/Jobs/jobform.phpPost Job Ad
/Jobs/listjobs.phpList All Jobs
/Jobs/listjobs.phpList Jobs by Type
/Jobs/listjobs.php?category=Jo...Job in Industry (22)
/Jobs/listjobs.php?category=Jo...Job in Academia (41)
/Jobs/listjobs.php?category=Co...Contract Work (1)
/Jobs/listjobs.php?category=Po...PostDoc Position (27)
/Jobs/listjobs.php?category=Ph...PhD Studentship (70)
/Jobs/listjobs.php?category=In...Internship (2)
/Jobs/listjobs.php?category=Di...Diploma Work (2)
/Jobs/listbyloc.phpList Jobs by Location
/Jobs/listjobs.php?continent=*...* None *
/Jobs/listjobs.php?country=* N...* None * (1)
/Jobs/listjobs.php?continent=AsiaAsia
/Jobs/listjobs.php?country=ChinaChina (11)
/Jobs/listjobs.php?country=IndiaIndia (16)
/Jobs/listjobs.php?country=Mal...Malaysia (1)
/Jobs/listjobs.php?country=Sou...South Korea (1)
/Jobs/listjobs.php?country=TaiwanTaiwan (1)
/Jobs/listjobs.php?country=Tha...Thailand (2)
/Jobs/listjobs.php?country=TurkeyTurkey (4)
/Jobs/listjobs.php?continent=E...Europe
/Jobs/listjobs.php?country=Aus...Austria (1)
/Jobs/listjobs.php?country=Bel...Belgium (3)
/Jobs/listjobs.php?country=Cze...Czech Republic (2)
/Jobs/listjobs.php?country=FranceFrance (21)
/Jobs/listjobs.php?country=Ger...Germany (19)
/Jobs/listjobs.php?country=ItalyItaly (6)
/Jobs/listjobs.php?country=Net...Netherlands (7)
/Jobs/listjobs.php?country=NorwayNorway (4)
/Jobs/listjobs.php?country=Rus...Russian Federation (1)
/Jobs/listjobs.php?country=SpainSpain (1)
/Jobs/listjobs.php?country=SwedenSweden (3)
/Jobs/listjobs.php?country=Uni...United Kingdom (12)
/Jobs/listjobs.php?continent=N...North America
/Jobs/listjobs.php?country=CanadaCanada (4)
/Jobs/listjobs.php?country=Uni...United States (38)
/Jobs/listjobs.php?continent=O...Oceania
/Jobs/listjobs.php?country=Aus...Australia (3)
/Jobs/listjobs.php?country=New...New Zealand (1)
/Jobs/listjobs.php?continent=S...South America
/Jobs/listjobs.php?country=BrazilBrazil (1)
/Jobs/listjobs.php?country=ChileChile (1)
/Jobs/search.phpSearch Job Ads
https://cfd-online.com/Events/Text duplicate Events
/Events/post.phpPost New Event
/Events/list.phpList All Events
/Events/list.phpList Events by Type
/Events/list.php?event_type_id=1Conferences (6)
/Events/list.php?event_type_id=2Workshops (1)
/Events/list.php?event_type_id=3Courses (2)
/Events/list.php?event_type_id=6Online Events (3)
/Events/listbyloc.phpList Events by Location
/Events/list.php?continent=AfricaAfrica
/Events/list.php?event_country...Algeria (1)
/Events/list.php?continent=AsiaText duplicate Asia
/Events/list.php?event_country...China (1)
/Events/list.php?event_country...India (2)
/Events/list.php?continent=EuropeText duplicate Europe
/Events/list.php?event_country...Germany (1)
/Events/list.php?event_country...Italy (2)
/Events/list.php?event_country...Montenegro (1)
/Events/list.php?event_country...Sweden (1)
/Events/list.php?event_country...United Kingdom (2)
/Events/list.php?continent=Oce...Text duplicate Oceania
/Events/list.php?event_country...Text duplicate New Zealand (1)
https://cfd-online.com/Tools/Tools
/Tools/unit_conversion.phpUnit Conversion
/Tools/yplus.phpY+ Estimation
/Tools/turbulence.phpTurbulence Properties
https://cfd-online.com/Feeds/Feeds
/Feeds/news.phpText duplicate News
/Feeds/blogs.phpText duplicate Blogs
/Feeds/vendors.phpVendors
/Feeds/jobs.phpText duplicate Jobs
/Feeds/journals.phpText duplicate Journals
https://cfd-online.com/About/About
https://cfd-online.com/About/About CFD Online
/About/privacy_policy.phpPrivacy Policy
/About/contacts.phpContacts & Feedback
https://cfd-online.com/Stats/Web Server Statistics
/About/sponsors.phpList of Sponsors
/About/sponsor.phpAdvertising on this Site
https://cfd-online.com/Search/Search
https://cfd-online.com/Text duplicate Home
/Forum/news.cgiCFD News and Announcements
/Forum/news.cgi?form=0announce
/Forum/news.cgi?subscribesubscribe
/Wiki/Main_PageCFD Wiki
/Wiki/CFD-Wiki:Contribute_some...growing
https://cfd-online.com/Jobs/CFD Jobs Database
/Jobs/jobform.phpadvertise
https://cfd-online.com/Events/CFD Events Calendar
/Events/post.phpsubmit
https://cfd-online.com/Tools/Text duplicate Online Tools
/Tools/unit_conversion.phpUnit Convertor
/Tools/yplus.phpText duplicate Y+ Estimation
/Tools/turbulence.phpText duplicate Turbulence
https://cfd-online.com/Forums/CFD Online Discussion Forums
https://cfd-online.com/Links/CFD Resources Online
https://cfd-online.com/Feeds/Feed Aggregators
/Feeds/news.phpText duplicate News
/Feeds/blogs.phpText duplicate Blogs
/Feeds/vendors.phpText duplicate Vendors
/Feeds/jobs.phpText duplicate Jobs
/Feeds/journals.phpText duplicate Journals
https://cfd-online.com/About/Text duplicate About CFD Online
/About/contacts.phpcontact info
https://cfd-online.com/Stats/traffic statistics
https://mas.to/@cfdonlineExternal No Text
https://twitter.com/cfdonlineExternal No Text
https://www.facebook.com/cfdon...External Subdomain No Text
http://validator.w3.org/check?...External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://cfd-online.com/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The X-powered header is sent within the response header. (unnecessary)
Performance
(Somewhat important)
The page response time is excellent with 0.04 seconds.
This page does not require any CSS files.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (33 kB).

HTTP Response Header

NameValue
dateSat, 18 May 2024 13:24:45 GMT
serverApache
set-cookie70 Characters
x-powered-byPleskLin
content-length33470
content-typetext/html
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 3,279 referring domains.
This page has 216,924 backlinks.
This page has backlinks from 1,899 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# robots.txt for https://www.cfd-online.com
User-agent: *
Disallow: /OpenFOAM_Discus
Disallow: /Forums/archive 
Disallow: /Forums/members
Disallow: /Forums.work
Disallow: /Forums-test
Disallow: /Forums-test4
Disallow: /Forum.old
Disallow: /server_stats
Disallow: /Icons
Disallow: /CZ
Disallow: /Stats
Disallow: /WebAdverts
Disallow: /S*
Disallow: /Jobs/Admin
Disallow: /Jobs/Backup
Disallow: /Users/jola/lic/
Disallow: /~*/
Disallow: /Users/jola 

# Block Bytespider which flooded our server 2023-08-25
User-agent: Bytespider
Disallow: /

Similar sites

Search preview

cfd-online.com
CFD Online
An online center for Computational Fluid Dynamics. This is the largest CFD site on the net with services like discussion forums, jobs, links and a wiki.

Most important keywords

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

KeywordResultRecheck
CFD78%Check
Online78%Check
CFD Online78%Check
Online Community58%Check
CFD News58%Check
Online Courses56%Check
Jobs51%Check
Forums51%Check
Wiki51%Check
Discussion51%Check
Show more keywords and terms

Test up to 1.000 webpages of cfd-online.com with our free plan!

Try For Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions