String-db.org - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
60% 
Page structure
41% 
Link structure
25% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.10 s
File size
106.90 kB
Words
514
Media files
45
Number of links
47 internal / 7 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
STRING: functional protein association networks
The length of the page title is perfect. (435 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://string-db.org/
There is a valid canonical link 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
theme-colortransparent
langen

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
Words from the H1 heading are not used in the page content.
This page contains 514 words. That's ok.
18.7% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 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 15.58 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.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 10 tags for this page.
Image SEO
(Somewhat important)
1 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/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/uploadpic_0005.pngNo alt attribute provided
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/ajax-loader.gifWorking...
/images/spinner_blue_small_transparent.gifwaiting spinner

Page structure

H1 heading
(Critically important)
Welcome to STRING
The H1 heading contains the words Welcome to! Use important keywords instead.
Too many H1 headings
The H1 heading is too short (17 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Welcome to STRING
H1 Search
H2 Protein-Protein Interaction Networks Functional Enrichment Analysis
H2 Example 1
H2 Example 2
H2 Example 3
H2 © STRING Consortium 2023
H2 Credits
H2 Access
H2 Info
H2 About
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 7 external links on this page.

Found links on this page

LinkAttributesAnchor text
/cgi/access?sessionId=bAkstSRd...12.0
https://string-db.eu.auth0.com...External Subdomain Login
/cgi/register?sessionId=bAkstS...Register
https://forms.gle/hJ1Guc6N6MLU...New window External Survey
/cgi/input?sessionId=bAkstSRdt...STRING
/cgi/input?sessionId=bAkstSRdt...Text duplicate STRING
/cgi/input?sessionId=bAkstSRdt...Search
/cgi/download?sessionId=bAkstS...Download
/cgi/help?sessionId=bAkstSRdti2vHelp
/cgi/my?sessionId=bAkstSRdti2vMy Data
/cgi/input?input_page_show_sea...Text duplicate Search
/cgi/input?sessionId=bAkstSRdt...Protein by name
/cgi/input?sessionId=bAkstSRdt...Multiple proteins
/cgi/input?sessionId=bAkstSRdt...Proteins by sequences
/cgi/input?sessionId=bAkstSRdt...Proteins with Values/Ranks
/cgi/input?sessionId=bAkstSRdt...Protein families ("COGs")
/cgi/input?sessionId=bAkstSRdt...... by family name
/cgi/input?sessionId=bAkstSRdt...... by protein name
/cgi/input?sessionId=bAkstSRdt...... by protein sequence
/cgi/input?sessionId=bAkstSRdt...... multiple protein names
/cgi/input?sessionId=bAkstSRdt...... multiple sequences
/cgi/input?sessionId=bAkstSRdt...Pathway / Process / DiseaseNew
/cgi/input?sessionId=bAkstSRdt...Add organismNew
/cgi/input?sessionId=bAkstSRdt...Organisms
/cgi/input?sessionId=bAkstSRdt...Examples
/cgi/network?sessionId=bAkstSR...Random entry
/cgi/network?sessionId=bAkstSR...show
/cgi/network?sessionId=bAkstSR...Text duplicate show
/cgi/network?sessionId=bAkstSR...Text duplicate show
https://www.isb-sib.ch/External Subdomain SIB - Swiss Institute of Bioinformatics
https://www.cpr.ku.dk/External Subdomain CPR - Novo Nordisk Foundation Center Protein Research
https://www.embl.de/External Subdomain EMBL - European Molecular Biology Laboratory
https://string-db.org/cgi/creditsCredits
/cgi/credits?footer_active_sub...Funding
/cgi/credits?footer_active_sub...Datasources
/cgi/credits?footer_active_sub...Partners
/cgi/credits?footer_active_sub...Software
https://string-db.org/cgi/accessAccess
/cgi/access?footer_active_subp...Versions
/cgi/access?footer_active_subp...APIs
/cgi/access?footer_active_subp...Licensing
/cgi/access?footer_active_subp...Usage
https://string-db.org/cgi/infoInfo
/cgi/info?footer_active_subpag...Scores
/cgi/info?footer_active_subpag...Use scenarios
/cgi/info?footer_active_subpag...FAQs
/cgi/info?footer_active_subpag...Cookies/Privacy
https://string-db.org/cgi/aboutAbout
/cgi/about?footer_active_subpa...Content
/cgi/about?footer_active_subpa...References
/cgi/about?footer_active_subpa...People
/cgi/about?footer_active_subpa...Statistics
https://globalbiodata.org/scie...External Global Biodata Coalition
https://www.elixir-europe.org/...External Subdomain ELIXIR

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://string-db.org/"
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 0.10 seconds.
The file size of the HTML document is fine (107 kB).

HTTP Response Header

NameValue
dateFri, 10 May 2024 11:46:27 GMT
content-typetext/html; charset=utf-8
set-cookie81 Characters
access-control-allow-origin*
cf-cache-statusDYNAMIC
servercloudflare
cf-ray8819b0569b9618d7-FRA
content-encodinggzip
alt-svch3=":443"; ma=86400
statuscode200
http_versionHTTP/2

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 1,083 referring domains.
This page has 876,226 backlinks.
This page has backlinks from 760 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 141 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

SiteMap: https://string-db.org/sitemap_index.xml
User-agent: AhrefsBot
Crawl-Delay: 60
User-agent: *
Crawl-delay: 2
Disallow: /*askId=*
Disallow: /*etworkId=*
Disallow: /*essionId=*
Disallow: /*serId=*
Disallow: /*equence=*
Disallow: /*rveste*
Disallow: /*a_referre*
Disallow: /*auth0logi*
Disallow: /version_9*
Disallow: /version_9_1
Disallow: /version_9_05
Disallow: /version_9_0
Disallow: /version_8*
Disallow: /version_8_0
Disallow: /version_8_1
Disallow: /version_8_2
Disallow: /version_8_3
Disallow: /version_7*
Disallow: /version_7_0
Disallow: /version_7_1
Disallow: /version_6*
Disallow: /version_6_0
Disallow: /version_6_1
Disallow: /version_6_3
Disallow: /version_5*
Disallow: /version_5_0
Disallow: /version_5_1
Disallow: /*gi/spa
Disallow: /*gi/show_pairwise_alignment.pl
Disallow: /*gi/show_network_save_page.pl
Disallow: /*gi/show_string_connections.pl
Disallow: /*gi/show_edge_details.pl
Disallow: /*gi/show_network_direct.pl
Disallow: /*gi/show_link_summary.pl
Disallow: /*gi/string_popup.pl
Disallow: /*gi/render* 
Disallow: /*gi/generate_task_specific_download_file.pl
Disallow: /*gi/flash_signal.pl
Disallow: /*gi/log_ga_event.pl
Disallow: /download
Disallow: /prophecies_cgi
Disallow: /cgi/briefexplanation
Disallow: /cgi/cogdetails
Disallow: /cgi/cscomm
Disallow: /cgi/debug
Disallow: /cgi/die
Disallow: /cgi/edgeswebservice
Disallow: /cgi/edit*
Disallow: /cgi/extension*
Disallow: /cgi/fetch*
Disallow: /cgi/generatedownloadfileafterdisambiguation
Disallow: /cgi/generatetaskspecificdownloadfile
Disallow: /cgi/logjserror/
Disallow: /cgi/jobstatus
Disallow: /cgi/jserror
Disallow: /cgi/logjserror
Disallow: /cgi/logetime
Disallow: /cgi/nodeswebservice
Disallow: /cgi/pairwisealignment
Disallow: /cgi/query*
Disallow: /cgi/show*
Disallow: /cgi/touch*
Disallow: /cgi/update*
Disallow: /cgi/upload*

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Search preview

Most important keywords

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

KeywordResultRecheck
STRING77%Check
Protein50%Check
Functional50%Check
Welcome50%Check
Networks49%Check
Network49%Check
protein name42%Check
Protein Family42%Check
Protein families42%Check
Functional Enrichment Analysis42%Check
Show more keywords and terms

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