Virology.ws - SEO Checker

Overview of the SEO Check
Meta information
93% 
Page quality
75% 
Page structure
75% 
Link structure
60% 
Server
59% 
External factors
100% 
SEO Score
Response time
0.79 s
File size
67.20 kB
Words
4657
Media files
6
Number of links
58 internal / 53 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 (4657 words). Maybe the content could be divided into several pages.
39.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
51 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 23.99 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 93 tags for this page.
Image SEO
(Somewhat important)
3 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.

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 Trial By Error: Lowenstein’s Guardian Opinion; Eliot Smith’s Post-NICE View; Tack’s Take on Blinding Study
H2 Trial By Error: Did the IBS Trial Really Show that Web-Based CBT Offered Significant Clinical Effectiveness?
H2 Trial By Error: Null Outcomes Presented as Success in Yet Another CBT Trial from Prof Trudie Chalder
H2 The remarkable diversity of bat coronaviruses
H2 Trial By Error: #MEAction’s Chronic Illness Survey; Patients’ Research Informs CDC’s Long-COVID Advice
H2 Holiday travel explains spread of a SARS-CoV-2 variant
H2 Trial By Error: More Disinformation from Professor White in Journal of Psychosomatic Research
H2 Trial By Error: Norway Rejects New Clinical Trial of Woo-Woo Lightning Process
H2 When Viruses Collide with Parasitic Worms
H2 T cells will save us from COVID-19, part two
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.
2 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 (53) 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
/2021/06/25/trial-by-error-low...Trial By Error: Lowenstein’s Guardian Opinion; Eliot Smith’s Post-NICE View; Tack’s Take on Blinding Study
/author/tuller/David Tuller
/2021/06/25/trial-by-error-low...Anchor 2 Comments
https://www.theguardian.com/co...External a thoughtful and well-argued opinion piece
https://www.linkedin.com/in/fi...External Fiona Lowenstein
https://www.nytimes.com/2020/0...External whose article in The New York Times last year
https://www.microbe.tv/twiv/tw...External appeared on a TWiV webcast
/2015/10/21/trial-by-error-i/my 15,000-word investigation of the PACE trial
/2020/06/25/trial-by-error-uk-...“now-discredited” meme about PACE
https://valerieeliotsmith.com/External Law and Health
https://valerieeliotsmith.com/...External a new blog
https://mecfsskeptic.com/External ME/CFS Skeptic
https://mecfsskeptic.com/comme...External comments on the CDC’s evidence review for ME/CFS
https://www.tandfonline.com/ep...External a study published last year
https://mecfsskeptic.com/probl...External taken an important look
https://twitter.com/MTackCVS/s...External an illuminating twitter thread
/2021/06/24/trial-by-error-did...Trial By Error: Did the IBS Trial Really Show that Web-Based CBT Offered Significant Clinical Effectiveness?
/author/tuller/Text duplicate David Tuller
/2021/06/24/trial-by-error-did...Anchor 3 Comments
/2020/01/24/trial-by-error-cbt...some posts
https://gut.bmj.com/content/68...External the ACTIB trial
/2021/06/24/trial-by-error-did...Anchor [Read more…] about Trial By Error: Did the IBS Trial Really Show that Web-Based CBT Offered Significant Clinical Effectiveness?
/2021/06/19/trial-by-error-nul...Trial By Error: Null Outcomes Presented as Success in Yet Another CBT Trial from Prof Trudie Chalder
/author/tuller/Text duplicate David Tuller
/2021/06/19/trial-by-error-nul...Anchor 6 Comments
https://www.kcl.ac.uk/people/p...External a professor of cognitive behavior therapy
https://www.cambridge.org/core...External yet another high-profile paper
/2021/06/19/trial-by-error-nul...Anchor [Read more…] about Trial By Error: Null Outcomes Presented as Success in Yet Another CBT Trial from Prof Trudie Chalder
/2021/06/17/the-remarkable-div...The remarkable diversity of bat coronaviruses
/author/admin/Vincent Racaniello
/2021/06/17/the-remarkable-div...Anchor Text duplicate 3 Comments
/wp-content/uploads/2021/06/Sc...No Text
https://doi.org/10.1016/j.cell...External recent study of bat samples
/2021/06/15/trial-by-error-mea...Trial By Error: #MEAction’s Chronic Illness Survey; Patients’ Research Informs CDC’s Long-COVID Advice
/author/tuller/Text duplicate David Tuller
/2021/06/15/trial-by-error-mea...Anchor 4 Comments
https://twitter.com/exceedherg...External on a panel
https://community.cochrane.org...External Subdomain Anchor Cochrane’s new exercise therapy review
https://www.meaction.net/epi/External the Chronic Illness Survey Adventure
/2021/06/15/trial-by-error-mea...Anchor [Read more…] about Trial By Error: #MEAction’s Chronic Illness Survey; Patients’ Research Informs CDC’s Long-COVID Advice
/2021/06/10/holiday-travel-exp...Holiday travel explains spread of a SARS-CoV-2 variant
/author/admin/Text duplicate Vincent Racaniello
/2021/06/10/holiday-travel-exp...Anchor 7 Comments
/wp-content/uploads/2020/02/co...IMG-ALT coronavirus Spike
https://www.nature.com/article...External travel and lack of effective containment and screening
/2021/06/10/trial-by-error-mor...Trial By Error: More Disinformation from Professor White in Journal of Psychosomatic Research
/author/tuller/Text duplicate David Tuller
/2021/06/10/trial-by-error-mor...Anchor Text duplicate 4 Comments
https://www.sciencedirect.com/...External Journal of Psychosomatic Research
https://www.sciencedirect.com/...External an admirable editorial
/2021/06/10/trial-by-error-mor...Anchor [Read more…] about Trial By Error: More Disinformation from Professor White in Journal of Psychosomatic Research
/2021/06/07/trial-by-error-nor...Trial By Error: Norway Rejects New Clinical Trial of Woo-Woo Lightning Process
/author/tuller/Text duplicate David Tuller
/2021/06/07/trial-by-error-nor...Anchor 10 Comments
https://melivet.files.wordpres...External Subdomain have rejected a proposed study
https://www.dagbladet.no/kultu...External an opinion piece of mine
https://www.codastory.com/waro...External my lengthy investigation of the Lightning Process
/2021/06/07/trial-by-error-nor...Anchor [Read more…] about Trial By Error: Norway Rejects New Clinical Trial of Woo-Woo Lightning Process
/2021/06/03/when-viruses-colli...When Viruses Collide with Parasitic Worms
/author/rey/Gertrud U. Rey
/2021/06/03/when-viruses-colli...Anchor Text duplicate 2 Comments
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/Text duplicate Vincent Racaniello
/2021/05/27/t-cells-will-save-...Anchor 9 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
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)
The checked page does not redirect to another URL.
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 of 0.79 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
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 (67 kB).

HTTP Response Header

NameValue
dateSat, 26 Jun 2021 10:37:39 GMT
serverApache
link<https://www.virology.ws/wp-json/>; rel="https://api.w.org/"
upgradeh2
connectionUpgrade
cache-controlmax-age=600
expiresSat, 26 Jun 2021 10:47:39 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 2,818 referring domains.
This page has 315,761 backlinks.
This page has backlinks from 2,027 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.

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
viruses54%Check
blog50%Check
as usual48%Check
infectious virus48%Check
influenza virus48%Check
Zika virus48%Check
Powassan virus48%Check

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