pubmed.ncbi.nlm.nih.gov | Website SEO Review

Response time

0.21 s

File size

41.50 kB

Words

378

Media files

5

Number of links

33 internal / 31 external

Meta specifications 59% achieved

Title

(Critically important)

PubMed

The page title is too short. (76 pixels of 580 max pixel length) Optimize title

The page title is only one word.

There are no duplicate words in the title

Meta Title

Meta description

(Critically important)

PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

The meta description is too long: 1382 pixels from max. 1000 pixels. Optimize description

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

https://pubmed.ncbi.nlm.nih.gov/

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)

This page is hosted on a subdomain. Use a top level domain for better SEO results.

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
HandheldFriendly	True
MobileOptimized	320
viewport	width=device-width, initial-scale=1.0
ncbi_sg_optimize_id	Empty
theme-color	#20558a
referrer	origin-when-cross-origin
ncbi_pinger_gtm_track	true
ncbi_app	pubmed
ncbi_db	pubmed
ncbi_phid	6E24000120350A5500002F94564130AB.1.m_1
ncbi_pinger_stat_url	https://www.ncbi.nlm.nih.gov/stat
log_category	literature
ncbi_cost_center	pubmed
ncbi_pdid	home
log_op	page_view
description	PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
keywords	PubMed, NIH, NLM, NCBI, National Institutes of Health, National Center for Biotechnology Information, National Library of Medicine, MEDLINE, Medical Journals, pub med, Journal Articles, Citation search
robots	index,follow,noarchive
lang	en
twitter:domain	pubmed.ncbi.nlm.nih.gov
twitter:card	summary_large_image
twitter:title	PubMed
twitter:url	https://pubmed.ncbi.nlm.nih.gov/
twitter:description	PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
twitter:image	https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg
og:title	PubMed
og:url	https://pubmed.ncbi.nlm.nih.gov/
og:description	PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
og:image	https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg
og:image:secure_url	https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg
og:type	website
og:site_name	PubMed
X-UA-Compatible	IE=edge
charset	UTF-8

Page quality 74% achieved

Content

(Critically important)

There are only 378 words on this page. Good pages should have about 800 words of useful content.

The average number of words per sentence of 8.85 words is low.

22.2% of the text are stop words.

The page contains a listing, which indicates a good text layout.

4 paragraphs were found on this page.

No placeholders texts or images were found.

There are no duplicates on the site.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

A viewport "width=device-width, initial-scale=1.0" is provided.

At least one 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 8 tags for this page.

Strong and Bold Tags

Image SEO

(Somewhat important)

Alt text (alternative text) is correctly used on all found images.

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
...eutils/uswds/img/favicons/favicon-57.png	U.S. flag
...gov/coreutils/uswds/img/icon-dot-gov.svg	Dot gov
...h.gov/coreutils/uswds/img/icon-https.svg	Https
.../coreutils/nwds/img/logos/AgencyLogo.svg	NIH NLM Logo
...4c88ab/core/images/pubmed-logo-white.svg	pubmed logo

Page structure 72% achieved

H1 heading

(Critically important)

Home Page

The H1 heading is too short (9 characters). It should be at least 20 Characters long.

H1-H6 headings

Headings

(Important)

The structure of headings is missing one or more levels. Do not skip heading levels.

H1-H6 headings

Heading structure

Heading level	Content
H1	Home Page
H2	Learn
H2	Find
H2	Download
H2	Explore
H2	Trending Articles
H2	Latest Literature
H4	Account

Link structure 52% achieved

Internal links

(Important)

Some internal link anchor texts are too long.

Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.

The number of internal links is ok.

Every linktext is unique.

Internal Linking

External links

(Nice to have)

There are too many external links (31) on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
https://pubmed.ncbi.nlm.nih.gov/	Anchor	Skip to main page content
https://www.ncbi.nlm.nih.gov/	External Subdomain	IMG-ALT NIH NLM Logo
https://account.ncbi.nlm.nih.gov/	External Subdomain	Log in
/myncbi/		Dashboard
/myncbi/collections/bibliography/		Publications
/account/settings/		Account settings
/account/signout/		Log out
https://www.ncbi.nlm.nih.gov/g...	External Subdomain Anchor	Access keys
https://www.ncbi.nlm.nih.gov/	External Subdomain	NCBI Homepage
/myncbi/		MyNCBI Homepage
https://pubmed.ncbi.nlm.nih.gov/	Anchor	Main Content
https://pubmed.ncbi.nlm.nih.gov/		IMG-ALT pubmed logo
/advanced/		Advanced
/clipboard/		Clipboard
/about/		About PubMed
/help/		FAQs & User Guide
https://support.nlm.nih.gov/kn...	External Subdomain	Finding Full Text
/advanced/		Advanced Search
/clinical/		Clinical Queries
/citmatch/		Single Citation Matcher
https://www.ncbi.nlm.nih.gov/b...	External Subdomain	E-utilities API
/download/		FTP
/batchcitmatch/		Batch Citation Matcher
https://www.ncbi.nlm.nih.gov/m...	External Subdomain	MeSH Database
https://www.ncbi.nlm.nih.gov/n...	External Subdomain	Journals
/38870290/		Artemisinins ameliorate polycystic ovarian syndrome by mediating LONP1-CYP11A1 interaction.
/38878778/		STING orchestrates the neuronal inflammatory stress response in multiple sclerosis.
/28557875/		Supporting the Support System: How Assessment and Communication Can Help Patients and Their Support Systems.
/38885650/		A metabolomics pipeline highlights microbial metabolism in bloodstream infections.
/38878111/		A global survey on the use of the international classification of diseases codes for metabolic dysfunction-associated fatty liver disease.
/?term=Arch+Phys+Med+Rehabil[j...		Arch Phys Med Rehabil (1)
/?term=Cell[jour]+AND+2024/6/2...		Cell (2)
/?term=Cell+Metab[jour]+AND+20...		Cell Metab (1)
/?term=Gastroenterology[jour]+...		Gastroenterology (1)
/?term=J+Am+Coll+Cardiol[jour]...		J Am Coll Cardiol (14)
/?term=J+Biol+Chem[jour]+AND+2...		J Biol Chem (5)
/?term=J+Neurosci[jour]+AND+20...		J Neurosci (4)
/?term=Nat+Commun[jour]+AND+20...		Nat Commun (46)
/?term=Nature[jour]+AND+2024/6...		Nature (44)
/?term=Neuron[jour]+AND+2024/6...		Neuron (2)
https://www.ncbi.nlm.nih.gov/m...	External Subdomain	MeSH
https://www.ncbi.nlm.nih.gov/pmc/	External Subdomain	PMC
https://www.ncbi.nlm.nih.gov/b...	External Subdomain	Bookshelf
/disclaimer/		Disclaimer
https://twitter.com/ncbi	External	No Text
https://www.facebook.com/ncbi.nlm	External Subdomain	No Text
https://www.linkedin.com/compa...	External Subdomain	No Text
https://github.com/ncbi	External	No Text
https://ncbiinsights.ncbi.nlm....	External Subdomain	No Text
https://www.nlm.nih.gov/social...	External Subdomain	Connect with NLM
https://twitter.com/NLM_NIH	New window External	No Text
https://www.facebook.com/natio...	New window External Subdomain	No Text
https://www.youtube.com/user/N...	New window External Subdomain	No Text
https://www.google.com/maps/pl...	New window External Subdomain	8600 Rockville Pike Bethesda, MD 20894
https://www.nlm.nih.gov/web_po...	External Subdomain	Web Policies
https://www.nih.gov/institutes...	External Subdomain	FOIA
https://www.hhs.gov/vulnerabil...	External Subdomain	HHS Vulnerability Disclosure
https://support.nlm.nih.gov/	External Subdomain	Help
https://www.nlm.nih.gov/access...	External Subdomain	Accessibility
https://www.nlm.nih.gov/career...	External Subdomain	Careers
https://www.nlm.nih.gov/	External Subdomain	NLM
https://www.nih.gov/	External Subdomain	NIH
https://www.hhs.gov/	External Subdomain	HHS
https://www.usa.gov/	External Subdomain	USA.gov

Server configuration 100% achieved

HTTP redirects

(Critically important)

This page redirects to "https://pubmed.ncbi.nlm.nih.gov/"

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 0.21 seconds.

The file size of the HTML document is fine (42 kB).

Page Speed

HTTP Response Header

Name	Value
date	Thu, 20 Jun 2024 10:19:33 GMT
server	nginx
strict-transport-security	max-age=31536000; includeSubDomains; preload
vary	origin
content-type	text/html; charset=utf-8
cache-control	private
referrer-policy	same-origin
x-frame-options	DENY
x-content-type-options	nosniff
cross-origin-opener-policy	same-origin
content-encoding	gzip
set-cookie	137 Characters
x-ua-compatible	IE=Edge
x-xss-protection	1; mode=block
via	1.1 google
alt-svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
statuscode	200
http_version	HTTP/2

External factors 100% achieved

Blacklists

(Nice to have)

This website is not classified "for adult only".

Blacklist

Backlinks

(Critically important)

This page is referenced by wikipedia.

This website has excellent links from other websites.

This page has backlinks from 282,399 referring domains.

This page has 133,486,414 backlinks.

This page has backlinks from 132,902 different ip addresses.

Backlinks

Facebook popularity

(Somewhat important)

The page has 61787 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Crawl-delay: 1
Disallow: /api
Disallow: /rss
Disallow: /advanced/adv-suggestions/
Disallow: /terms/
Disallow: /addToHistory/
Disallow: /deleteHistory/
Disallow: /downloadHistory/
Disallow: /deleteHistoryRecord/
Disallow: /historyCacheExists/
Disallow: /*/references/
Disallow: /*/citations/
Disallow: /*/export/
Disallow: /*/citedby/
Disallow: /*/similar/
Disallow: /*/adj-nav/
Disallow: /ajax/
Disallow: /clipboard/
Disallow: /clipboard-next-page/
Disallow: /health/
Disallow: /deep-health-abstract/
Disallow: /deep-health-search/
Disallow: /deep-health-auth/
Disallow: /error/400/
Disallow: /error/403/
Disallow: /error/404/
Disallow: /error/500/
Disallow: /results-export-ids/
Disallow: /results-export-search-data/
Disallow: /results-export-email-by-search-data/
Disallow: /results-export-search-by-year/
Disallow: /send-email/
Disallow: /list-existing-collections/
Disallow: /add-to-existing-collection/
Disallow: /create-and-add-to-new-collection/
Disallow: /toggle-favorites-collection/
Disallow: /list-bibliography-delegates/
Disallow: /add-to-bibliography/
Disallow: /create-saved-search/
Disallow: /create-rss-feed-url/
Disallow: /searches/
Disallow: /collections/
Disallow: /more/
Disallow: /suggestions/
Disallow: /try-search-term/
Disallow: /rss-feed/

Sitemap: https://pubmed.ncbi.nlm.nih.gov/sitemap?p=index.xml

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pubmed.ncbi.nlm.nih.gov

PubMed

PubMed® comprises more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

Most important keywords

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

Keyword	Result	Recheck
PubMed	73%	Check
content PubMed	59%	Check
PubMed Central	59%	Check
gov	54%	Check
site	51%	Check
literature	50%	Check
page	50%	Check
NLM	50%	Check
NCBI	48%	Check
Biomedical Literature	48%	Check
Web Page	48%	Check
content	46%	Check
citations	46%	Check
journals	46%	Check
science	46%	Check
full	46%	Check
text	46%	Check
web	46%	Check
full text	46%	Check
million	46%	Check
MEDLINE	46%	Check
life	46%	Check
online	46%	Check
books	46%	Check
include	46%	Check

Show more keywords and terms

Pubmed.ncbi.nlm.nih.gov - SEO Checker

Task list of SEO Improvements 4 Tasks

Meta specifications 59% achieved

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(Nice to have)

(Nice to have)

Meta tags

Test up to 1.000 webpages of pubmed.ncbi.nlm.nih.gov with our free plan!

Page quality 74% achieved

(Critically important)

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(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

(Somewhat important)

Media list

Page structure 72% achieved

(Critically important)

(Important)

Heading structure

Link structure 52% 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

(Nice to have)

(Critically important)

(Somewhat important)

Links from Wikipedia

Robots.txt

Similar sites

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Most important keywords

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