David.ncifcrf.gov - SEO Checker

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Overview of the SEO Check
Meta information
70% 
Page quality
31% 
Page structure
79% 
Link structure
25% 
Server
24% 
External factors
100% 
SEO Score
Response time
1.07 s
File size
34.40 kB
Words
99
Media files
16
Number of links
50 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
DAVID Functional Annotation Bioinformatics Microarray Analysis
The length of the page title is perfect. (574 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)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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)
No doctype markup was found.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
charsetutf-8

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Page quality

Content
(Critically important)
There are only 99 words on this page. Use at least 250 words to provide useful information.
Some words from the page title are not used within the pages content
12.1% of the text are stop words.
The page contains a listing, which indicates a good text layout.
8 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 23.33 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
Multiple viewport tags are given. There should only be one.
No Apple touch icon is specified.
This page loads 5 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (34). We recommend using a maximum of 6 tags for this page.
The following tag is repeated too often: d
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
/graphics/hhs-logo.png
/graphics/delimiter-arrow.pngNo alt attribute provided
/graphics/DAVID-Bioinformatics-Logo.pngThe Database for Annotation, Visualization and Integrated Discovery
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image
https://david.ncifcrf.gov/images/check.gifcheck image

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H5 Overview
H5 Hot Links
H5 What's New
H5 DAVID Statistics
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 19 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.hhs.gov/External Subdomain U.S. Department of Health & Human Services
https://www.nih.gov/External Subdomain National Institutes of Health
/home.jspIMG-ALT The Database for Annotation, Visualization and Integrated Discovery
/home.jspHome
/tools.jspStart Analysis
/summary.jspFunctional Annotation Functional Annotation Clustering Functional Annotation Chart Functional Annotation Table
/gene2gene.jspGene Functional Classification
/conversion.jspGene ID Conversion
/list.jspGene Name Batch Viewer
/content.jsp?file=documentatio...Documentation
/helps/tutorial.pdfNew window Quick Start Tutorial
/helps/DAVID_presentation_Marc...New window Tutorial
/helps/DAVID_Tutorial_Video_20...New window Tutorial Video
/content.jsp?file=documentatio...New window Limitations for Large Gene Lists
https://david-bioinformatics.f...New window External Subdomain DAVID Forum
/content.jsp?file=FAQs.htmlFAQ
/knowledgebase/DAVID_knowledge...New window Download DAVID Knowledgebase
/content.jsp?file=WS.htmlDAVID Web Services
/content.jsp?file=DAVID_API.htmlDAVID API Services
/content.jsp?file=Licensing.htmlLicensing Information
/content.jsp?file=Accessibilit...Accessibility Statement
/content.jsp?file=citation.htmCiting DAVID
/content.jsp?file=DAVID_Public...DAVID Publications
http://books.google.com/books?...New window External Subdomain DAVID in Scientific Books
/content.jsp?file=fact.htmlFact Sheet
/content.jsp?file=Acknowledgem...Credits & Contributions
/content.jsp?file=release.htmlVersion
/content.jsp?file=update.htmlUpdate
/content.jsp?file=Contact.htmlContact Us
/content.jsp?file=about_us.htmlWho Are We?
/content.jsp?file=LHRI_Publica...LHRI Publications
/content.jsp?file=LHRI_Present...LHRI Presentations
/content.jsp?file=release.htmlNew window DAVID
/content.jsp?file=update.htmlNew window DAVID Knowledgebase
https://david-bioinformatics.f...New window External Subdomain Text duplicate DAVID Forum
/content.jsp?file=FAQs.htmlNew window Text duplicate FAQ
/content.jsp?file=LHRI_Publica...New window Text duplicate LHRI Publications
/content.jsp?file=DAVID_Public...New window Text duplicate DAVID Publications
https://davidbioinformatics.ni...New window External Subdomain URL anchor text
https://davidbioinformatics.nih.gov
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2023q4 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2023q3 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2023q2 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2023q1 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2022q4 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2022q3 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2022q2 released
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2022q1 released
https://pubmed.ncbi.nlm.nih.go...New window External Subdomain The latest DAVID publication in Nucleic Acids Research is now available in PubMed
/content.jsp?file=release.htmlNew window DAVID 2021 Update released
https://david.ncifcrf.gov/New window Subdomain production site
/content.jsp?file=update.htmlNew window DAVID Knowledgebase v2021q4
https://david-d.ncifcrf.gov/New window External Subdomain DAVID 6.8
https://david-d.ncifcrf.gov/New window External Subdomain development site
/content.jsp?file=release.htmlNew window Text duplicate DAVID 2021 Update released
/content.jsp?file=update.htmlNew window Text duplicate DAVID Knowledgebase v2021q4
/content.jsp?file=functional_a...New window Documentation for Benjamini and FDR has been updated.
https://david-bioinformatics.f...New window External Subdomain URL anchor text
https://david-bioinformatics.freeforums.net
https://scholar.google.com/cit...New window External Subdomain > 69K Citations
A-TITLE View Google Scholar Survey
/content.jsp?file=citation.htmcite DAVID
/content.jsp?file=Licensing.htmlTerms of Service
/content.jsp?file=Contact.htmlText duplicate Contact Us
https://www.hhs.gov/vulnerabil...New window External Subdomain HHS Vulnerability Disclosure
https://www.nih.gov/accessibilityNew window External Subdomain Accessibility
https://www.nih.gov/institutes...New window External Subdomain Freedom of Information Act
https://www.nih.gov/privacy-po...New window External Subdomain Privacy Policy
https://www.edi.nih.gov/no-fea...New window External Subdomain No Fear Act
https://oig.hhs.gov/New window External Subdomain Office of Inspector General
https://www.usa.gov/New window External Subdomain USA.gov
https://www.nih.gov/disclaimersNew window External Subdomain Disclaimers

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://david.ncifcrf.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is slow (1.07 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 4 CSS files. This may affect the page load time negatively.
This page loads 5 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (34 kB).

HTTP Response Header

NameValue
dateFri, 09 Aug 2024 11:04:08 GMT
serverDAVID
strict-transport-securitymax-age=31536000; includeSubDomains; preload
content-typetext/html;charset=utf-8
set-cookie69 Characters
varyAccept-Encoding
x-frame-optionssameorigin
transfer-encodingchunked
statuscode200
http_versionHTTP/1.1

External factors

This website has excellent links from other websites.
This page has backlinks from 400 referring domains.
This page has 3,640 backlinks.
This page has backlinks from 335 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /*.jsp
Disallow: /data/

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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
DAVID68%Check
DAVID Functional Annotation54%Check
Annotation48%Check
Functional Annotation47%Check
Functional46%Check
Analysis45%Check
DAVID Functional Annotation Bioinformatics43%Check
LHRI39%Check
Publications39%Check
Forum39%Check
Show more keywords and terms

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