Sonicvisualiser.org - SEO Checker

Overview of the SEO Check
Meta information
79% 
Page quality
44% 
Page structure
97% 
Link structure
100% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.01 s
File size
4.80 kB
Words
310
Media files
3
Number of links
11 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Sonic Visualiser
The page title is too short. (143 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Sonic Visualiser is a program for viewing and analysing the contents of music audio files.
The length of the meta description is perfect. (544 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
Server location: Germany
The language is not specified in the HTML markup.
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.
The character encoding is not specified in the HTTP header.
Doctype
(Nice to have)
The doctype HTML 4.01 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
robotsindex
keywordssonic visualiser visualizer visualise visualize audio music spectrogram feature extraction
descriptionSonic Visualiser is a program for viewing and analysing the contents of music audio files.

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Page quality

Content
(Critically important)
There are only 310 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 34.5 words is high.
31.9% 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.
10 paragraphs were found on this page.
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 viewpoint tag is provided.
No Apple touch icon is specified.
This page does not require any JavaScript files.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 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
/images/tony-screeny-20191112.pngTony screen shot
/images/sonic-lineup-windows-20191004.pngSonic Lineup screen shot
/images/sv-3.0-win.pngSonic Visualiser screen shot

Page structure

H1 heading
(Critically important)
Sonic Visualiser
The H1 heading is too short (16 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Sonic Visualiser
H2 Visualisation, analysis, and annotation of music audio recordings
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 4 external links on this page.
LinkAttributesAnchor text
/news/index.htmlNews
/download.htmlDownload
/documentation.htmlDocumentation
/videos.htmlVideos
http://www.vamp-plugins.org/External Subdomain Plugins
https://sonicvisualiser.org/tonyIMG-ALT Tony screen shot
/sonic-lineupIMG-ALT Sonic Lineup screen shot
/download.htmlDownload it here!
/sonic-lineup/index.htmlSonic Lineup
/tony/index.htmlTony
https://vamp-plugins.org/sonic...External Sonic Annotator
/sv2010.pdfpdf
/sv.bib.txtbib
https://c4dm.eecs.qmul.ac.uk/External Subdomain Centre for Digital Music
https://particularprograms.co.uk/External Particular Programs Ltd

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://sonicvisualiser.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
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 0.01 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 (5 kB).

HTTP Response Header

NameValue
dateSun, 18 May 2025 06:49:05 GMT
serverApache/2.4.41 (Ubuntu)
last-modifiedFri, 21 Mar 2025 17:06:27 GMT
etag"1361-630dd4666fdd8-gzip"
accept-rangesbytes
varyAccept-Encoding
content-encodinggzip
content-length1952
content-typetext/html
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 207 referring domains.
This page has 1,700 backlinks.
This page has backlinks from 128 different ip addresses.

Search preview

sonicvisualiser.org
Sonic Visualiser
Sonic Visualiser is a program for viewing and analysing the contents of music audio files.

Most important keywords

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

KeywordResultRecheck
Sonic89%Check
Sonic Visualiser88%Check
Visualiser87%Check
audio50%Check
music50%Check
music audio50%Check
Audio Files48%Check
program46%Check
files46%Check
Viewing46%Check

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