Virology.ws - SEO Checker

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Overview of the SEO Check
Meta information
93% 
Page quality
75% 
Page structure
75% 
Link structure
67% 
Server
63% 
External factors
100% 
SEO Score
Response time
1.12 s
File size
66.00 kB
Words
4882
Media files
8
Number of links
55 internal / 39 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
virology blog
The page title is too short. (116 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
About viruses and viral disease
The meta description is too short. (195 pixels out of 1000 max pixel length) Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.virology.ws/
The specified canonical link points to a different page.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel prev meta tag on this page.
Rel next URL https://www.virology.ws/page/2/
The rel next and prev tags are set correctly.
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
descriptionAbout viruses and viral disease
viewportwidth=device-width, initial-scale=1
msapplication-TileImagehttps://www.virology.ws/wp-content/uploads/2021/01/cropped-vb-icon-270x270.jpg
langen-us
nexthttps://www.virology.ws/page/2/
charsetUTF-8

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Page quality

Content
(Critically important)
The content of this page is too large (4882 words). Maybe the content could be divided into several pages.
39.7% of the text are stop words.
The page contains a listing, which indicates a good text layout.
54 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 24.62 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 9 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1" is provided.
At least one 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 98 tags for this page.
Image SEO
(Somewhat important)
4 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)
This page uses Google authorship information without an image.
HTTPS
(Somewhat important)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
.../01/cropped-blog-new-2021-no-names-3.jpgvirology blog
/wp-content/uploads/2021/06/3.pngNo alt attribute provided
/wp-content/uploads/2021/03/ctl-216x300.pngNo alt attribute provided
.../uploads/2020/02/coronavirus-300x261.pngcoronavirus
...t/uploads/2018/06/png_polio_gpei_310.jpgpng_polio_gpei_310
/wp-content/uploads/2021/05/14.pngNo alt attribute provided
/wp-content/uploads/2021/04/cbDVG.jpgNo alt attribute provided
...tivecommons.org/l/by-nc-sa/4.0/80x15.pngCreative Commons License

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.
Some headings do not have any content.

Heading structure

Heading levelContent
H2 When Viruses Collide with Parasitic Worms
H2 T cells will save us from COVID-19, part two
H2 Novel human coronaviruses from pigs and dogs
H2 Trial By Error: Journal Editorial Calls for Caution in Exercise-Based Rehab Programs for Long COVID
H2 A genetically stable attenuated poliovirus vaccine
H2 Trial By Error: More Letters about Professor Anthony David’s Mis-Citations of Key Study on Costs of MUS
H2 Trial By Error: My Letters to Psychosomatics Journal About Prof White’s Misleading GETSET Paper
H2 Early Immune Responses to Herpes Simplex Virus Type I Infection
H2 Trial By Error: In Guardian Column, Professor Pariante Parrots Standard Biopsychosocial Nonsense
H2 Defective genomes modulate respiratory syncytial virus pathogenesis
H2 Primary Sidebar
H3 by Vincent Racaniello
H3 Follow
H3 Contents
H3 Earth’s Virology Course
H3 Podcasts
H3 Useful Resources
H3 Empty heading
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
3 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (39) on this page.

Found links on this page

LinkAttributesAnchor text
http://www.virology.ws/Anchor Skip to main content
http://www.virology.ws/Anchor Skip to primary sidebar
https://www.virology.ws/IMG-ALT virology blog
/2021/06/03/when-viruses-colli...When Viruses Collide with Parasitic Worms
/author/rey/Gertrud U. Rey
/2021/06/03/when-viruses-colli...Anchor Leave a Comment
https://pubmed.ncbi.nlm.nih.go...External Subdomain study
https://www.microbe.tv/twip/tw...External 194
/2021/05/27/t-cells-will-save-...T cells will save us from COVID-19, part two
/author/admin/Vincent Racaniello
/2021/05/27/t-cells-will-save-...Anchor 8 Comments
/wp-content/uploads/2021/03/ct...No Text
https://www.virology.ws/page/4/do not impact T cell reactivity
https://immunology.sciencemag....External Subdomain but not T-cell responses in COVID-19 convalescent donors and vaccinees
/2021/05/20/novel-human-corona...Novel human coronaviruses from pigs and dogs
/author/admin/Text duplicate Vincent Racaniello
/2021/05/20/novel-human-corona...Anchor 3 Comments
/wp-content/uploads/2020/02/co...IMG-ALT coronavirus
https://www.medrxiv.org/conten...External positive for coronavirus
https://academic.oup.com/cid/a...External shown to harbor canine coronavirus
/2021/05/15/trial-by-error-jou...Trial By Error: Journal Editorial Calls for Caution in Exercise-Based Rehab Programs for Long COVID
/author/tuller/David Tuller
/2021/05/15/trial-by-error-jou...Anchor 24 Comments
https://www.jospt.org/doi/10.2...External “Humility and Acceptance: Working Within Our Limits With Long COVID and Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome.”
/2021/05/15/trial-by-error-jou...Anchor [Read more…] about Trial By Error: Journal Editorial Calls for Caution in Exercise-Based Rehab Programs for Long COVID
/2021/05/13/a-genetically-stab...A genetically stable attenuated poliovirus vaccine
/author/admin/Text duplicate Vincent Racaniello
/2021/05/13/a-genetically-stab...Anchor Text duplicate 3 Comments
/wp-content/uploads/2018/06/pn...IMG-ALT png_polio_gpei_310
https://www.sciencedirect.com/...External new OPV2 strain (nOPV2) was developed
https://www.sciencedirect.com/...External tested in a phase I trial
/2021/05/11/trial-by-error-mor...Trial By Error: More Letters about Professor Anthony David’s Mis-Citations of Key Study on Costs of MUS
/author/tuller/Text duplicate David Tuller
/2021/05/11/trial-by-error-mor...Anchor Text duplicate 8 Comments
/2021/05/11/trial-by-error-mor...Anchor [Read more…] about Trial By Error: More Letters about Professor Anthony David’s Mis-Citations of Key Study on Costs of MUS
/2021/05/06/trial-by-error-my-...Trial By Error: My Letters to Psychosomatics Journal About Prof White’s Misleading GETSET Paper
/author/tuller/Text duplicate David Tuller
/2021/05/06/trial-by-error-my-...Anchor 7 Comments
/2021/04/06/trial-by-error-get...wrote about
https://www.sciencedirect.com/...External a one-year follow-up of the GETSET trial
/2021/05/06/trial-by-error-my-...Anchor [Read more…] about Trial By Error: My Letters to Psychosomatics Journal About Prof White’s Misleading GETSET Paper
/2021/05/06/early-immune-respo...Early Immune Responses to Herpes Simplex Virus Type I Infection
/author/rey/Text duplicate Gertrud U. Rey
/2021/05/06/early-immune-respo...Anchor 1 Comment
/wp-content/uploads/2021/05/14...No Text
https://pubmed.ncbi.nlm.nih.go...External Subdomain Text duplicate study
/2021/05/01/trial-by-error-in-...Trial By Error: In Guardian Column, Professor Pariante Parrots Standard Biopsychosocial Nonsense
/author/tuller/Text duplicate David Tuller
https://www.theguardian.com/co...External an opinion piece
/2021/05/01/trial-by-error-in-...Anchor [Read more…] about Trial By Error: In Guardian Column, Professor Pariante Parrots Standard Biopsychosocial Nonsense
/2021/04/29/defective-genomes-...Defective genomes modulate respiratory syncytial virus pathogenesis
/author/admin/Text duplicate Vincent Racaniello
https://www.nature.com/article...External modulating pathogenesis of respiratory syncytial virus in humans
https://www.urmc.rochester.edu...External Subdomain image credit
/wp-content/uploads/2021/04/cb...No Text
https://www.virology.ws/page/2/Next Page »
https://www.virology.ws/about/New window Earth's virology Professor
http://www.twitter.com/davidtu...External Text duplicate David Tuller
https://twitter.com/gertrudreyExternal Text duplicate Gertrud U. Rey
http://www.facebook.com/thiswe...New window External Facebook,
http://www.twitter.com/profvrrNew window External Twitter,
http://www.youtube.com/profvrrNew window External YouTube,
http://www.instagram.com/profvrrNew window External Instagram
https://www.virology.ws/feedNew window RSS
http://eepurl.com/Gcw59New window External Email
/table-of-contents/New window Table of Contents
https://www.virology.ws/mecfs/New window ME/CFS
/threading-the-neidl/New window Inside a BSL-4
/2015/07/02/the-wall-of-polio-...New window The Wall of Polio
https://www.virology.ws/art/New window Microbe Art
/pov-video/New window Interviews With Virologists
http://virology.ws/courseNew window Columbia U
/virology.ws/virologiaVirologia en Español
/virology-101/New window Virology 101
/influenza-101/New window Influenza 101
http://www.microbe.tv/twivNew window External This Week in Virology
http://www.microbe.tv/twimNew window External This Week in Microbiology
http://www.microbe.tv/twipNew window External This Week in Parasitism
http://www.microbe.tv/urbanag/New window External Urban Agriculture
http://www.microbe.tv/twievoNew window External This Week in Evolution
http://www.microbe.tv/viruswatchNew window External Virus Watch
http://www.microbe.tv/New window External MicrobeTV
https://www.lecturio.com/New window External Lecturio Online Courses
http://www.healthmap.org/enNew window External HealthMap
http://msphere.asm.org/New window External mSphere
http://www.polioeradication.org/New window External Polio eradication
http://www.promedmail.org/New window External Promed-Mail
http://schaechter.asmblog.org/...New window External Subdomain Small Things Considered
https://viralzone.expasy.org/New window External Subdomain ViralZone
http://viperdb.scripps.edu/New window External Subdomain Virus Particle Explorer
http://thelivingriver.org/New window External The Living River
http://parasiteswithoutborders...New window External Parasites Without Borders
http://creativecommons.org/lic...External IMG-ALT Creative Commons License
http://creativecommons.org/lic...External Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Server configuration

HTTP redirects
(Critically important)
This page redirects to "http://www.virology.ws/"
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 slow (1.12 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 7 CSS files. This may affect the page load time negatively.
This page loads 9 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (66 kB).

HTTP Response Header

NameValue
dateThu, 03 Jun 2021 19:22:37 GMT
serverApache
link<https://www.virology.ws/wp-json/>; rel="https://api.w.org/"
upgradeh2
connectionUpgrade
cache-controlmax-age=600
expiresThu, 03 Jun 2021 19:32:37 GMT
varyAccept-Encoding,User-Agent
content-encodinggzip
transfer-encodingchunked
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

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 2,936 referring domains.
This page has 319,104 backlinks.
This page has backlinks from 2,047 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares, comments and likes on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.virology.ws/sitemap.xml

Similar sites

Search preview

www.virology.ws
virology blog
About viruses and viral disease

Most important keywords

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

KeywordResultRecheck
virology65%Check
virus58%Check
virology blog58%Check
virus as56%Check
viruses54%Check
Zika virus48%Check
Powassan virus48%Check
viruses infect48%Check
ancestral virus48%Check
viral46%Check
Show more keywords and terms

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