Openhpsdr.org - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
71% 
Page structure
50% 
Link structure
25% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.20 s
File size
21.60 kB
Words
1803
Media files
5
Number of links
78 internal / 24 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
HPSDR - High Performance Software Defined Radio
The length of the page title is perfect. (471 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
High Performance Software Defined Radio design group, open source design, uses FPGA
The length of the meta description is perfect. (555 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
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 XHTML 1.1 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
descriptionHigh Performance Software Defined Radio design group, open source design, uses FPGA
keywordsSDR,FPGA,Software Defined Radio, Ozy, Janus, Atlas, SDR-1000
authorDave Larsen, KV0S
langen
content-typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 1803 words. That's ok.
39.4% 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.
34 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 16.82 words is good.
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 does not require any JavaScript files.
Bold and strong tags
(Somewhat important)
Some tags are too long. With 170 characters this one is longer than 70 characters:
"there is still much to be done in bringing hpsdr to fruition. for those experimentally minded amateurs..."
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)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
http://openhpsdr.org/img/hpsdr5-s.pngHPSDR Logo
http://openhpsdr.org/img/HPSDR-ALEX-sm.JPGVK6APH MOPA
http://openhpsdr.org/img/AtlasSystem.pngBlock Diagram
http://openhpsdr.org/img/Software.pngComputer Block Diagram
/img/HermesSystem-sm.pngHermes Block Diagram

Page structure

H1 heading
(Critically important)
High Performance Software Defined Radio
Too many H1 headings
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 High Performance Software Defined Radio
H1 Components
H1 Status
H1 Updates
H1 Project Description
H2 An Open Source Design
H2 Open source design
H2 Further Information
H2 Contacting Us
H4 Brief definition of Open Source
H4 Open Hardware License - Non-Commercial License
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.
25 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 24 external links on this page.

Found links on this page

LinkAttributesAnchor text
http://openhpsdr.org/index.phpHome
http://openhpsdr.org/download.phpDownloads
/documents.phpDocuments
http://openhpsdr.org/support.phpSupport
/wiki/index.php?title=HpsdrWik...Wiki
/reflector.phpDiscussion List
/teamspeak.phpTeamSpeak
/resources.phpResources
/project_outline.phpProject Outline
/publications.phpPublications
http://openhpsdr.org/videos.phpVideos
http://openhpsdr.org/mlink.phpManufacturer Links
/devprojects.phpDerivative Projects
http://openhpsdr.org/archives.phpArchives
http://openhpsdr.org/atlas.phpAtlas - Backplane
/pinocchio.phpPinocchio - Extender
http://openhpsdr.org/janus.phpJanus - IQ Sound
http://openhpsdr.org/ozy.phpOzy - USB Interface
http://openhpsdr.org/magister.phpMagister - USB Interface
http://openhpsdr.org/mercury.phpMercury - Receiver
http://openhpsdr.org/penny.phpPennyLane - Transmitter
http://openhpsdr.org/LPU.phpLPU - Power Supply
http://openhpsdr.org/pandora.phpPandora - Box
/pennywhistle.phpPennyWhistle - Amplifier
/excalibur.phpExcalibur - Clock Insert
http://openhpsdr.org/metis.phpMetis - Ethernet Interface
http://openhpsdr.org/alex.phpAlex - Filters
http://openhpsdr.org/hermes.phpHermes - Single board
http://openhpsdr.org/apollo.phpApollo - 15W PA
http://openhpsdr.org/munin.phpMunin - 100W PA
http://openhpsdr.org/phoenix.phpPhoenix - QSD Radio
http://openhpsdr.org/khronos.phpKhronos - GPSTCXO
http://openhpsdr.org/themis.phpThemis - GPSDO
/gibraltar.phpGibraltar - GPS
http://openhpsdr.org/odyssey.phpOdyssey - Space
http://openhpsdr.org/thor.phpThor - Amplifer
http://openhpsdr.org/demeter.phpDemeter - Power Supply
http://openhpsdr.org/cyclops.phpCyclops - Spectrum Analyser
/wiki/index.php?title=PowerSDRPowerSDR - Windows
/wiki/index.php?title=Ghpsdrghpsdr - Linux standalone
/wiki/index.php?title=Ghpsdr3ghpsdr3 -Linux server/client
/wiki/index.php?title=Ghpsdr3-Qtghpsdr3-Qt -Linux
/wiki/index.php?title=KISS_Kon...Kiss Konsole - Windows
/wiki/index.php?title=MacHPSDRHeterodyne Mac
http://www.tapr.org/kits_herme...External Subdomain TAPR
http://www.tapr.org/External Subdomain Text duplicate TAPR
http://www.hamsdr.com/login.aspxExternal Subdomain www.tapr.com
/resources.phpResource
http://tapr.org/External See TAPR
http://www.tapr.org/kits_alex....External Subdomain Text duplicate TAPR
http://iquadlabs.com/External iQuadLabs.com
http://iquadlabs.com/External Text duplicate iQuadLabs.com
http://www.tapr.org/kits_metis...External Subdomain Text duplicate TAPR
http://openhpsdr.org/metis.htmlMetis
http://openhpsdr.org/hermes.htmlHermes
http://www.tapr.org/conf_tapr_...External Subdomain SDR Talks
http://www.tapr.org/kits_magis...External Subdomain Text duplicate TAPR
http://www.tapr.org/kits_excal...External Subdomain Text duplicate TAPR
http://www.tapr.org/kits_pw.htmlExternal Subdomain Text duplicate TAPR
http://www.tapr.org/kits_pando...External Subdomain Text duplicate TAPR
http://www.tapr.org/kits_lpu.htmlExternal Subdomain Text duplicate TAPR
http://www.arvideonews.com./dc...External Subdomain arvideonews
http://www.tapr.org/External Subdomain Text duplicate TAPR
/documents.htmldocuments.html
/wiki/index.php?title=DOCwiki/index.php?title=DOC
/img/HPSDR-ALEX.JPGIMG-ALT VK6APH MOPA
http://www.winrad.org/External Subdomain WinRad
http://www.hdsdr.de/External Subdomain WinRadHD
http://www.dxatlas.com/CwSkimmer/External Subdomain CWSkimmer
http://openhpsdr.org/hermes.phpText duplicate Hermes
http://www.hello-radio.org/External Subdomain www.hello-radio.org
http://qrz.com/External URL anchor text
http://qrz.com
http://www.tapr.org/ohl.htmlExternal Subdomain URL anchor text
http://www.tapr.org/ohl.html
http://openhpsdr.org/history.phpHPSDR history page
/wiki/index.php?title=HpsdrWik...Community_Portal
http://openhpsdr.org/atlas.phpNo Text
http://openhpsdr.org/ozy.phpNo Text
http://openhpsdr.org/metis.phpNo Text
http://openhpsdr.org/magister.phpNo Text
http://openhpsdr.org/magister.phpNo Text
http://openhpsdr.org/mercury.phpNo Text
http://openhpsdr.org/alex.phpNo Text
http://openhpsdr.org/penelope.phpNo Text
/wiki/index.php?title=PENNYLANENo Text
/pennywhistle.phpNo Text
/wiki/index.php?title=MUNINNo Text
http://openhpsdr.org/thor.phpNo Text
http://openhpsdr.org/alex.phpNo Text
/excalibur.phpNo Text
http://openhpsdr.org/janus.phpNo Text
http://openhpsdr.org/LPU.phpNo Text
/wiki/index.php?title=PowerSDRNo Text
/wiki/index.php?title=KISS_Kon...No Text
/wiki/index.php?title=Ghpsdr3No Text
/wiki/index.php?title=MacHPSDRNo Text
/wiki/index.php?title=Ghpsdr3No Text
/wiki/index.php?title=GhpsdrNo Text
/wiki/index.php?title=Ghpsdr3No Text
http://gnuradio.org/redmine/wi...External No Text
http://www.g3ukb.co.uk/External Subdomain No Text
http://openhpsdr.org/hermes.phpNo Text
/wiki/index.php?title=APOLLONo Text

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.20 seconds.
This page only loads 1 CSS files. That's ok.
This page does not require any JavaScript files.
The file size of the HTML document is fine (22 kB).

HTTP Response Header

NameValue
dateSat, 06 Apr 2024 12:33:25 GMT
serverApache
cache-controlmax-age=600
expiresSat, 06 Apr 2024 12:43:25 GMT
varyAccept-Encoding,User-Agent
content-encodinggzip
content-length7177
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 558 referring domains.
This page has 58,287 backlinks.
This page has backlinks from 332 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

                        
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            openhpsdr.org
HPSDR - High Performance Software Defined Radio

High Performance Software Defined Radio design group, open source design, uses FPGA
Most important keywords

            
Following keywords were found. You can check the keyword optimization of this page for each keyword.
KeywordResultRecheck
Software80%Check
Software Defined79%Check
Defined Radio78%Check
Software Defined Radio78%Check
Radio77%Check
Defined77%Check
Performance Software Defined Radio77%Check
High Performance Software Defined76%Check
High73%Check
Performance73%Check
  
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