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String-db.org - SEO Checker

Overview of the SEO Check

Meta information

80%

Page quality

60%

Page structure

41%

Link structure

25%

Server

100%

External factors

100%

SEO Score

SEO Score Widget

Response time

0.13 s

File size

107.50 kB

Words

514

Media files

Number of links

47 internal / 7 external

Task list of SEO Improvements 8 Tasks

Avoid internal links with dynamic URL parameters.Very important!
Add a meta description.Very important!
Remove unnecessary words like welcome messages from your H1 heading.Very important!
Only use 1 H1 Heading in your text.Very important!
The page title should be better suited to the content of the page.Important!
The H1 heading should suit better to the page content. (Words from the heading are rarely used in the text)Important!
Add a viewport tag.Tip!
Use good alternative descriptions (alt attributes) for your images.Tip!

View all

Meta specifications 80% achieved

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 Title

Meta description

(Critically important)

The meta description is missing.

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

https://string-db.org/

There is a valid canonical link specified.

Canonical Tag

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

Declaring language in HTML

Alternate/Hreflang Links

(Somewhat important)

There are no alternate links specified on this page.

Hreflang

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.

Meta Tags

Domain

(Somewhat important)

The domain is no subdomain.

The domain length is good.

The domain does not contain non-latin characters.

Domain for SEO

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.

SEO-friendly URLs

Charset encoding

(Somewhat important)

The charset encoding (UTF-8) is set correctly.

Character Encoding

Doctype

(Nice to have)

The doctype HTML 5 is set correctly.

The doctype is placed at first in the HTML code.

HTML Doctype

Favicon

(Nice to have)

The favicon is linked correctly.

Favicon

Meta tags

Name	Value
theme-color	transparent
lang	en

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Automated check for keyword optimization

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Page quality 60% achieved

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.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

No viewpoint tag is provided.

No Apple touch icon is specified.

Mobile Optimization

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.

Strong and Bold Tags

Image SEO

(Somewhat important)

1 images have no alt attribute. The content of alt attributes is used by search engines.

Image SEO

There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.

Social Sharing

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.

HTTPS

Media list

URL	Alt attribute	Title
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/uploadpic_0005.png	No alt attribute provided
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/ajax-loader.gif	Working...
/images/spinner_blue_small_transparent.gif	waiting spinner

Page structure 41% achieved

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.

H1-H6 headings

Headings

(Important)

The heading structure is perfect.

H1-H6 headings

Heading structure

Heading level	Content
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

Link structure 25% achieved

Internal links

(Important)

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.

Internal Linking

External links

(Nice to have)

There are 7 external links on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
/cgi/access?sessionId=bPGrjPYQ...		12.0
https://string-db.eu.auth0.com...	External Subdomain	Login
/cgi/register?sessionId=bPGrjP...		Register
https://forms.gle/hJ1Guc6N6MLU...	New window External	Survey
/cgi/input?sessionId=bPGrjPYQa...		STRING
/cgi/input?sessionId=bPGrjPYQa...	Text duplicate	STRING
/cgi/input?sessionId=bPGrjPYQa...		Search
/cgi/download?sessionId=bPGrjP...		Download
/cgi/help?sessionId=bPGrjPYQahsc		Help
/cgi/my?sessionId=bPGrjPYQahsc		My Data
/cgi/input?input_page_show_sea...	Text duplicate	Search
/cgi/input?sessionId=bPGrjPYQa...		Protein by name
/cgi/input?sessionId=bPGrjPYQa...		Multiple proteins
/cgi/input?sessionId=bPGrjPYQa...		Proteins by sequences
/cgi/input?sessionId=bPGrjPYQa...		Proteins with Values/Ranks
/cgi/input?sessionId=bPGrjPYQa...		Protein families ("COGs")
/cgi/input?sessionId=bPGrjPYQa...		... by family name
/cgi/input?sessionId=bPGrjPYQa...		... by protein name
/cgi/input?sessionId=bPGrjPYQa...		... by protein sequence
/cgi/input?sessionId=bPGrjPYQa...		... multiple protein names
/cgi/input?sessionId=bPGrjPYQa...		... multiple sequences
/cgi/input?sessionId=bPGrjPYQa...		Pathway / Process / DiseaseNew
/cgi/input?sessionId=bPGrjPYQa...		Add organismNew
/cgi/input?sessionId=bPGrjPYQa...		Organisms
/cgi/input?sessionId=bPGrjPYQa...		Examples
/cgi/network?sessionId=bPGrjPY...		Random entry
/cgi/network?sessionId=bPGrjPY...		show
/cgi/network?sessionId=bPGrjPY...	Text duplicate	show
/cgi/network?sessionId=bPGrjPY...	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/credits		Credits
/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/access		Access
/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/info		Info
/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/about		About
/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 100% achieved

HTTP redirects

(Critically important)

This page redirects to "https://string-db.org/"

WWW Redirect

HTTP header

(Important)

No X-Powered HTTP header is sent.

This page uses GZip for compressed data transmission.

HTTP headers

Performance

(Somewhat important)

The page response time is excellent with 0.13 seconds.

The file size of the HTML document is fine (108 kB).

Page Speed

HTTP Response Header

Name	Value
date	Sat, 10 Aug 2024 09:28:00 GMT
content-type	text/html; charset=utf-8
set-cookie	81 Characters
access-control-allow-origin	*
cf-cache-status	DYNAMIC
server	cloudflare
cf-ray	8b0ef40b7f823721-FRA
content-encoding	gzip
alt-svc	h3=":443"; ma=86400
statuscode	200
http_version	HTTP/2

External factors 100% achieved

Backlinks

(Critically important)

This page is referenced by wikipedia.

This website has excellent links from other websites.

This page has backlinks from 1,132 referring domains.

This page has 802,676 backlinks.

This page has backlinks from 774 different ip addresses.

Backlinks

Links from Wikipedia

STRING

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*

Similar sites

Search preview

string-db.org

STRING: functional protein association networks

Most important keywords

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

Keyword	Result	Recheck
STRING	77%	Check
Protein	50%	Check
Functional	50%	Check
Welcome	50%	Check
Networks	49%	Check
Network	49%	Check
protein name	42%	Check
Protein Family	42%	Check
Protein families	42%	Check
Functional Enrichment Analysis	42%	Check
protein sequence	42%	Check
Protein Family Name	40%	Check
functional protein association networks	40%	Check
Pathway	39%	Check
Download	39%	Check
Gene	39%	Check
Ontology	39%	Check
terms	39%	Check
KEGG	39%	Check
pathways	39%	Check
Gene Ontology	39%	Check
Disease	39%	Check
diseases	39%	Check
published	39%	Check
manuscripts	39%	Check

Show more keywords and terms

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Easy troubleshooting for your entire website
Meta and on page check for each page
Automated check for keyword optimization

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String-db.org - SEO Checker

Task list of SEO Improvements 8 Tasks

Meta specifications 80% achieved

(Critically important)

(Critically important)

(Critically important)

(Important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

Meta tags

Test up to 1.000 webpages of string-db.org with our free plan!

Page quality 60% achieved

(Critically important)

(Critically important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

(Somewhat important)

Media list

Page structure 41% achieved

(Critically important)

(Important)

Heading structure

Link structure 25% achieved

(Important)

(Nice to have)

Found links on this page

Server configuration 100% achieved

(Critically important)

(Important)

(Somewhat important)

HTTP Response Header

External factors 100% achieved

(Critically important)

Links from Wikipedia

Robots.txt

Similar sites

Search preview

Most important keywords

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