Sciencemag.org - SEO Checker

Overview of the SEO Check
Meta information
80% 
Page quality
41% 
Page structure
58% 
Link structure
41% 
Server
9% 
External factors
100% 
SEO Score
Response time
1.17 s
File size
148.20 kB
Words
1179
Media files
52
Number of links
158 internal / 100 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Science | AAAS
The page title is too short. (142 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
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Crawlability
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There are no problems in accessing the website.
Canonical URL
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https://www.sciencemag.org/
There is a valid canonical link specified.
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
Alternate/Hreflang Links
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There are no alternate links specified on this page.
Other meta tags
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There is no rel next meta tag on this page.
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The domain length is good.
The domain does not contain non-latin characters.
Page URL
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The URL does not have too many subdirectories.
Charset encoding
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The charset encoding (UTF-8) is set correctly.
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The doctype HTML 5 is set correctly.
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Meta tags

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Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
These Typos were found:
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The average number of words per sentence of 41 words is high.
This page contains 1179 words. That's ok.
16.8% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
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This website does not use a frameset.
Mobile optimization
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No Apple touch icon is specified.
This website loads 13 javascript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0, shrink-to-fit=no" is provided.
Bold and strong tags
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The usage of strong and bold tags is perfect. We recommend the use of up to 24 tags for this page.
Image SEO
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2 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
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Additional markup
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No additional page markup was found.
HTTPS
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This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

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...signal_aaz1236_Dec1_R1.jpg?itok=e73dbgW8An artist's depiction of networks in the liver, shown as black lines and dots on a blue background.
...4LNgU&c=d579a3371ef4024abd44203595f9b848Man being injected with vaccine.
...u_collections_1280x720.jpg?itok=z2_FcS5AThis scanning electron microscope image shows SARS-CoV-2 (orange)—also known as 2019-nCoV, the virus that causes COVID-19—isolated from a patient in the U.S., emerging from the surface of cells (green) cultured in the lab.
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...ciimm_abc0217_Nov27_R7.jpg?itok=zWdWVZgWColored transmission electron micrograph of Escherichia coli O157 bacteria
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..._1204NID_Salmon_online.jpg?itok=FA-5u8eNA salmon jumping upstream
...c/Chan-Zuckerberg-v2_1.jpg?itok=HGyex6TJa spread of bioRxiv documents
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...g_vision_loss_1280x720.jpg?itok=EMBxehU- Microscopy image of a mouse retina.
...blic/RTX8D42P-1280x720.jpg?itok=B9NcUvVoAn employee in personal protective equipment removes vials of AstraZeneca's COVID-19 vaccine from a visual inspection machine
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...15245D6373E_12201306;2.png?itok=6Q0ciqBYTraining patterns for the letter A shown to nonhuman primates.
..._9_/public/trawl_1280p.jpg?itok=TXzECd76researchers sort through fish on the deck of a trawling vessel
..._/public/ANTICOV_TRIAL.jpg?itok=BLNTdavq doctor and patient together at hospital Saint Joseph in DRC
...c/Chan-Zuckerberg-v2_1.jpg?itok=HGyex6TJa spread of bioRxiv documents
...6_9_/public/ravn_1280p.jpg?itok=Gd58VQuEthe Ravn X drone on a runway
...blic/RTX8D42P-1280x720.jpg?itok=B9NcUvVoAn employee in personal protective equipment removes vials of AstraZeneca's COVID-19 vaccine from a visual inspection machine
...lic/Moderna Trial-9915.jpg?itok=6HNIP46WMan being injected with vaccine.
...blic/SannedeJong_1280p.jpg?itok=Oq9AGCu-Sanne de Jong, a nursing assistant
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...od-vision-1920-overlay.jpg?itok=HcC5N2K2illustrations of the letter A with podcast symbol overlay
...default/files/Unknown.jpeg?itok=vyZlX3JnWebinar Promo
...ci/370/6521/-F1.medium.gif?itok=8UwXS1aHMagazine Cover
.../all/themes/science/images/logo-aaas.svgAAASAmerican Association for the Advancement of Science
Audio URL
...64-f41c-4fd1-991b-ac850104ec91/audio.mp3

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 88 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 Subterranean competition
H2 Amino acids alleviate liver disease
H2 Metabolic networks and mouse models reveal obesity slows glucose metabolism
H2 ‘Absolutely remarkable': No one who got Moderna's vaccine in trial developed severe COVID-19
H2 Coronavirus: Research, Commentary, and News
H2 A biochemical deep-diving autonomous vehicle
H2 Paring down pyroptosis
H2 There's an ecosystem beneath your feet—and it needs protection, says new report
H2 Fisheries in a flask? Loose DNA in seawater offers a new measure of marine populations
H2 First-of-its-kind African trial tests common drugs to prevent severe COVID-19
H2 Common tire chemical implicated in mysterious deaths of at-risk salmon
H2 In biology publishing shakeup, eLife will require submissions to be posted as preprints
H2 Rocket-launching drone ready to take satellites into orbit
H2 Researchers restore lost sight in mice, offering clues to reversing aging
H2 ‘Malicious and misconceived.' Indian vaccine producer hits back at complaint from trial volunteer
H2 Why I came out as nonbinary to my Ph.D. lab
H2 When sound science meets imperfect grammar
H2 Don't erase undergrad researchers and technicians from author lists
H2 When my Ph.D. adviser moved her lab, I had to decide: Do I stay or do I go?
H2 How to navigate conflict with your research adviser
H2 The pandemic strengthened my relationship with my supervisor—and prepared us to talk about race
H2 Do you dread giving talks? Turn fear into joy with these four keys
H2 When a financial crisis tanked my research, I found help from unexpected colleagues
H2 Journals
H2 Subterranean competition Duplicate text
H2 Saving sanctuaries
H2 Fodder for future scientists
H2 Mitigating obesity
H2 Cambrian radiodont eyes
H2 Paring down pyroptosis Duplicate text
H2 Regulatory IgA response
H2 Tracking deep-sea fishery resources
H2 A biochemical deep-diving autonomous vehicle Duplicate text
H2 A regulatory switch in obesity
H2 STINGing viruses without interferon
H2 PlGF protects against cardiovascular disease
H2 Stressed neutrophils induce tumor recurrence
H2 First Release Science papers
H2 Postnatal connectomic development of inhibition in mouse barrel cortex
H2 COVID-19 vaccine trial ethics once we have efficacious vaccines
H2 Quantum computational advantage using photons
H2 A ubiquitous tire rubber-derived chemical induces acute mortality in coho salmon
H2 Noncanonical transnitrosylation network contributes to synapse loss in Alzheimers disease
H2 Seroprevalence of anti-SARS-CoV-2 IgG antibodies in Kenyan blood donors
H2 Featured VideosWatch more Videos
H2 Aerial view of damage at the Arecibo Observatory
H2 Arecibo telescope collapses, ending 57-year run
H2 Magnetic spray transforms inanimate objects into minirobots
H2 Fires can kindle biodiversity, sparking new approaches to conservation
H2 This scientist buoys a small firm's quest to make a top-notch COVID-19 vaccine
H2 Watch rare shorebirds engage in a synchronized water dance
H2 Insights View all Insights
H2 Constraints on selfish behavior in plants
H2 Miniaturization of robots that fly on beetles' wings
H2 Probing the dark side of the exciton
H2 Stimulating the brain to restore vision
H2 ScienceInsider
H2 Fisheries in a flask? Loose DNA in seawater offers a new measure of marine populations Duplicate text
H2 First-of-its-kind African trial tests common drugs to prevent severe COVID-19 Duplicate text
H2 In biology publishing shakeup, eLife will require submissions to be posted as preprints Duplicate text
H2 Rocket-launching drone ready to take satellites into orbit Duplicate text
H2 ‘Malicious and misconceived.' Indian vaccine producer hits back at complaint from trial volunteer Duplicate text
H2 Editor's Picks
H2 ‘Absolutely remarkable': No one who got Moderna's vaccine in trial developed severe COVID-19 Duplicate text
H2 Prehistoric female hunter
H2 Evaluating mask effectiveness
H2 More people are getting COVID-19 twice, suggesting immunity wanes quickly in some
H2 Autoantibodies against type I IFNs in patients with life-threatening COVID-19
H2 Laser fusion reactor approaches ‘burning plasma' milestone
H2 The known unknowns of T cell immunity to COVID-19
H2 Arecibo telescope collapses, ending 57-year run Duplicate text
H2 Science's English dominance hinders diversity—but the community can work toward change
H2 Latest News
H2 Science Podcast View all episodes
H2 Podcast: How the new COVID-19 vaccines work, and restoring vision with brain implants
H2 How To Get Published
H2 Read the Latest Issue of Science
H3 Enzyme formation by immune receptors
H3 Quantum-limited sound attenuation
H3 Mario J. Molina (1943–2020)
H3 Dec. 3, 2020
H3 4 December 2020
H3 Science and Policy
H3 Immunology
H3 Epidemiology
H3 Medicine/Diseases
H3 Genetics
H3 European News
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.
Some anchor texts are used more than once.
4 links don't have an anchor text.
The amount of internal links is ok.
There are too many external links (100) on this page.
LinkAttributesAnchor text
https://www.sciencemag.org/Anchor Skip to main content
https://www.aaas.org/External AAAS
https://www.sciencemag.org/ScienceMag.org
https://science.sciencemag.org/External Subdomain Science
http://science.sciencemag.org/...External Subdomain IMG-ALT Root systems of two different plants, stained with red and blue dye. The two root systems remain mostly separate.
http://science.sciencemag.org/...External Subdomain Subterranean competition
http://science.sciencemag.org/...External Subdomain Science | Dec. 3, 2020
http://stm.sciencemag.org/cont...External Subdomain IMG-ALT A colored scanning electron micrograph of human liver fibrosis.
http://stm.sciencemag.org/cont...External Subdomain Amino acids alleviate liver disease
http://stm.sciencemag.org/cont...External Subdomain Science Translational Medicine | Dec. 2, 2020
http://stke.sciencemag.org/con...External Subdomain IMG-ALT An artist's depiction of networks in the liver, shown as black lines and dots on a blue background.
http://stke.sciencemag.org/con...External Subdomain Metabolic networks and mouse models reveal obesity slows glucose metabolism
http://stke.sciencemag.org/con...External Subdomain Science Signaling | Dec. 1, 2020
/news/2020/11/absolutely-remar...IMG-ALT Man being injected with vaccine.
/news/2020/11/absolutely-remar...‘Absolutely remarkable': No one who got Moderna's vaccine in trial developed severe COVID-19
/news/2020/11/absolutely-remar...ScienceInsider | Nov. 30, 2020
/collections/coronavirusNo Text
/collections/coronavirusIMG-ALT This scanning electron microscope image shows SARS-CoV-2 (orange)—also known as 2019-nCoV, the virus that causes COVID-19—isolated from a patient in the U.S....
/collections/coronavirusCoronavirus: Research, Commentary, and News
/collections/coronavirusNo Text
http://robotics.sciencemag.org...External Subdomain IMG-ALT Two people lower a large yellow container from a ship into the ocean.
http://robotics.sciencemag.org...External Subdomain A biochemical deep-diving autonomous vehicle
http://robotics.sciencemag.org...External Subdomain Science Robotics | Nov. 18, 2020
http://immunology.sciencemag.o...External Subdomain IMG-ALT Colored transmission electron micrograph of Escherichia coli O157 bacteria
http://immunology.sciencemag.o...External Subdomain Paring down pyroptosis
http://immunology.sciencemag.o...External Subdomain Science Immunology | Nov. 27, 2020
/coronavirus-research-commenta...Read our COVID-19 research and news.
https://www.sciencemag.org/Anchor Latest News
https://www.sciencemag.org/Anchor Career News
/news/2020/12/there-s-ecosyste...IMG-ALT insect holding up a small green leaf
/news/2020/12/there-s-ecosyste...There's an ecosystem beneath your feet—and it needs protection, says new report
/author/elizabeth-pennisiElizabeth Pennisi
/news/2020/12/fisheries-flask-...IMG-ALT researchers sort through fish on the deck of a trawling vessel
/news/2020/12/fisheries-flask-...Fisheries in a flask? Loose DNA in seawater offers a new measure of marine populations
/author/erik-stokstadErik Stokstad
/news/2020/12/first-its-kind-a...IMG-ALT doctor and patient together at hospital Saint Joseph in DRC
/news/2020/12/first-its-kind-a...First-of-its-kind African trial tests common drugs to prevent severe COVID-19
/author/kai-kupferschmidtKai Kupferschmidt
/news/2020/12/common-tire-chem...IMG-ALT A salmon jumping upstream
/news/2020/12/common-tire-chem...Common tire chemical implicated in mysterious deaths of at-risk salmon
/author/erik-stokstadText duplicate Erik Stokstad
/news/2020/12/biology-publishi...IMG-ALT a spread of bioRxiv documents
/news/2020/12/biology-publishi...In biology publishing shakeup, eLife will require submissions to be posted as preprints
/author/lila-gutermanLila Guterman
/news/2020/12/rocket-launching...IMG-ALT the Ravn X drone on a runway
/news/2020/12/rocket-launching...Rocket-launching drone ready to take satellites into orbit
/author/sarah-scolesSarah Scoles
/news/2020/12/researchers-rest...IMG-ALT Microscopy image of a mouse retina.
/news/2020/12/researchers-rest...Researchers restore lost sight in mice, offering clues to reversing aging
/author/kelly-servickKelly Servick
/news/2020/12/malicious-and-mi...IMG-ALT An employee in personal protective equipment removes vials of AstraZeneca's COVID-19 vaccine from a visual inspection machine
/news/2020/12/malicious-and-mi...‘Malicious and misconceived.' Indian vaccine producer hits back at complaint from trial volunteer
/author/sanjay-kumarSanjay Kumar
https://www.sciencemag.org/newsMore Daily News
/careers/2020/12/why-i-came-ou...IMG-ALT a person writing "they" on their back
/careers/2020/12/why-i-came-ou...Why I came out as nonbinary to my Ph.D. lab
/author/bec-roldanBec Roldan
/careers/2020/11/when-sound-sc...IMG-ALT Experimental Error preview image
/careers/2020/11/when-sound-sc...When sound science meets imperfect grammar
/author/adam-rubenAdam Ruben
/careers/2020/11/don-t-erase-u...IMG-ALT a person stopping an eraser from touching a paper
/careers/2020/11/don-t-erase-u...Don't erase undergrad researchers and technicians from author lists
/author/emily-fogartyEmily Fogarty
/careers/2020/11/when-my-phd-a...IMG-ALT a person following someone while carrying a house, car, and another person
/careers/2020/11/when-my-phd-a...When my Ph.D. adviser moved her lab, I had to decide: Do I stay or do I go?
/author/jessica-toothakerJessica Toothaker
/careers/2020/11/how-navigate-...IMG-ALT Letters to Young Scientists thumbnail
/careers/2020/11/how-navigate-...How to navigate conflict with your research adviser
/author/jay-j-van-bavelJay J. Van Bavel
/author/william-cunninghamWilliam A. Cunningham
/careers/2020/11/pandemic-stre...IMG-ALT two people with a broken barrier between them
/careers/2020/11/pandemic-stre...The pandemic strengthened my relationship with my supervisor—and prepared us to talk about race
/author/sasha-mcdowellSasha McDowell
/careers/2020/11/do-you-dread-...IMG-ALT Your Unicorn Career image
/careers/2020/11/do-you-dread-...Do you dread giving talks? Turn fear into joy with these four keys
/author/alaina-g-levineAlaina G. Levine
/careers/2020/11/when-financia...IMG-ALT a person standing while people talk and walk around
/careers/2020/11/when-financia...When a financial crisis tanked my research, I found help from unexpected colleagues
/author/thomas-gernonThomas Gernon
/careersMore Careers News
http://science.sciencemag.org/External Subdomain IMG-ALT Science Magazine Logo
http://science.sciencemag.org/...External Subdomain Text duplicate Subterranean competition
http://science.sciencemag.org/...External Subdomain Saving sanctuaries
http://science.sciencemag.org/...External Subdomain Fodder for future scientists
http://science.sciencemag.org/External Subdomain Table of contents
http://advances.sciencemag.org/External Subdomain IMG-ALT Science Advances Logo
http://advances.sciencemag.org...External Subdomain Mitigating obesity
http://advances.sciencemag.org...External Subdomain Cambrian radiodont eyes
http://advances.sciencemag.org/External Subdomain Text duplicate Table of contents
http://immunology.sciencemag.org/External Subdomain IMG-ALT Science Immunlology Logo
http://immunology.sciencemag.o...External Subdomain Text duplicate Paring down pyroptosis
http://immunology.sciencemag.o...External Subdomain Regulatory IgA response
http://immunology.sciencemag.org/External Subdomain Text duplicate Table of contents
http://robotics.sciencemag.org/External Subdomain IMG-ALT Science Robotics Logo
http://robotics.sciencemag.org...External Subdomain Tracking deep-sea fishery resources
http://robotics.sciencemag.org...External Subdomain Text duplicate A biochemical deep-diving autonomous vehicle
http://robotics.sciencemag.org/External Subdomain Text duplicate Table of contents
http://signaling.sciencemag.org/External Subdomain IMG-ALT Science Signaling Logo
http://stke.sciencemag.org/con...External Subdomain A regulatory switch in obesity
http://stke.sciencemag.org/con...External Subdomain STINGing viruses without interferon
http://stke.sciencemag.org/External Subdomain Text duplicate Table of contents
http://stm.sciencemag.org/External Subdomain IMG-ALT Science Translational Medicine Logo
http://stm.sciencemag.org/cont...External Subdomain PlGF protects against cardiovascular disease
http://stm.sciencemag.org/cont...External Subdomain Stressed neutrophils induce tumor recurrence
http://stm.sciencemag.org/External Subdomain Text duplicate Table of contents
http://science.sciencemag.org/...External Subdomain Postnatal connectomic development of inhibition in mouse barrel cortex
http://science.sciencemag.org/...External Subdomain COVID-19 vaccine trial ethics once we have efficacious vaccines
http://science.sciencemag.org/...External Subdomain Quantum computational advantage using photons
http://science.sciencemag.org/...External Subdomain A ubiquitous tire rubber-derived chemical induces acute mortality in coho salmon
http://science.sciencemag.org/...External Subdomain Noncanonical transnitrosylation network contributes to synapse loss in Alzheimers disease
http://science.sciencemag.org/...External Subdomain Seroprevalence of anti-SARS-CoV-2 IgG antibodies in Kenyan blood donors
http://science.sciencemag.org/...External Subdomain Complete List
/tags/election-2020?utm_campai...No Text
https://www.sciencemag.org/videosNew window Watch more Videos
/news/2020/12/arecibo-telescop...IMG-ALT Aerial view of damage at the Arecibo Observatory
/news/2020/12/arecibo-telescop...Arecibo telescope collapses, ending 57-year run
/news/2020/11/magnetic-spray-t...IMG-ALT video still of a spray robot with play arrow overlay
/news/2020/11/magnetic-spray-t...Magnetic spray transforms inanimate objects into minirobots
/news/2020/11/fires-can-kindle...IMG-ALT wildfire with play button overlay
/news/2020/11/fires-can-kindle...Fires can kindle biodiversity, sparking new approaches to conservation
/news/2020/11/woman-playing-ke...IMG-ALT Nita Patel in a lab with play arrow overlay
/news/2020/11/woman-playing-ke...This scientist buoys a small firm's quest to make a top-notch COVID-19 vaccine
/news/2020/11/watch-rare-shore...IMG-ALT a phalarope with play arrow overlay
/news/2020/11/watch-rare-shore...Watch rare shorebirds engage in a synchronized water dance
https://twitter.com/sciencemag...External Tweets by @sciencemagazine
/content/currentView all Insights
http://science.sciencemag.org/...External Subdomain Constraints on selfish behavior in plants
/journal-author/marina-semchenkoMarina Semchenko
http://science.sciencemag.org/...External Subdomain Miniaturization of robots that fly on beetles' wings
/journal-author/jiyu-sunJiyu Sun
http://science.sciencemag.org/...External Subdomain Probing the dark side of the exciton
/journal-author/meng-xing-naMeng Xing Na
/journal-author/ziliang-yeZiliang Ye
http://science.sciencemag.org/...External Subdomain Stimulating the brain to restore vision
/journal-author/michael-s-beau...Michael S. Beauchamp
/journal-author/daniel-yoshorDaniel Yoshor
http://science.sciencemag.org/...External Subdomain Enzyme formation by immune receptors
/journal-author/lei-tianLei Tian
/journal-author/xin-liXin Li
http://science.sciencemag.org/...External Subdomain Quantum-limited sound attenuation
/journal-author/thomas-schaeferThomas Schaefer
http://science.sciencemag.org/...External Subdomain Mario J. Molina (1943–2020)
/journal-author/kimberly-pratherKimberly A. Prather
/news/2020/12/fisheries-flask-...Text duplicate IMG-ALT researchers sort through fish on the deck of a trawling vessel
/news/2020/12/fisheries-flask-...Text duplicate Fisheries in a flask? Loose DNA in seawater offers a new measure of marine populations
/author/erik-stokstadText duplicate Erik Stokstad
/news/2020/12/first-its-kind-a...Text duplicate IMG-ALT doctor and patient together at hospital Saint Joseph in DRC
/news/2020/12/first-its-kind-a...Text duplicate First-of-its-kind African trial tests common drugs to prevent severe COVID-19
/author/kai-kupferschmidtText duplicate Kai Kupferschmidt
/news/2020/12/biology-publishi...Text duplicate IMG-ALT a spread of bioRxiv documents
/news/2020/12/biology-publishi...Text duplicate In biology publishing shakeup, eLife will require submissions to be posted as preprints
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