Scientificamerican.com - SEO Checker

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Overview of the SEO Check
Meta information
71% 
Page quality
64% 
Page structure
95% 
Link structure
73% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.17 s
File size
263.50 kB
Words
891
Media files
39
Number of links
112 internal / 6 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Scientific American
The page title is too short. (171 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
The meta description is too long: 1134 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.scientificamerican.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Canada
The following language is defined by HTML: en
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)
The domain name is very long.
The domain is no subdomain.
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
theme-color#fff
robotsmax-image-preview:standard
descriptionScientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
viewportwidth=device-width, initial-scale=1.0
langen
twitter:imagehttps://www.scientificamerican.com/static/sciam-mark.jpg
twitter:titleScientific American
twitter:descriptionScientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
twitter:image:altScientific American Logo
twitter:site@sciam
twitter:domainscientificamerican.com
twitter:cardsummary_large_image
og:urlhttps://www.scientificamerican.com/
og:imagehttps://www.scientificamerican.com/static/sciam-mark.jpg
og:titleScientific American
og:descriptionScientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
og:site_nameScientific American
og:image:altScientific American Logo
og:typehomepage
og:localeen_US
charsetutf-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 39.5 words is high.
This page contains 891 words. That's ok.
25.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
9 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
Image SEO
(Somewhat important)
5 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
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...er-dad-podcast-span.png?m=1749760692.447A photo composite featuring two furry hamsters and a planet logo with the words "Science Quickly"
...inensis_moves_larva.jpg?m=1749675861.189Close up of an Asian Needle Ant (Brachyponera chinensis) worker walking on wood, carrying and moving a larva from a disturbed nest
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..._of_the_union.jpg?m=1747251173.485&w=450President Donald Trump delivers address to a joint session of Congress, split image seen from watching television, March 4, 2025. The American flag is seen overlaid in front of President Trump's face as the photo was captured during a camera transition as part of a live television broadcast

Page structure

H1 heading
(Critically important)
Scientific American
The H1 heading is too short (19 characters). It should be at least 20 Characters long.
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Scientific American
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 $0 for Digital Access
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 June 2025 Issue
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Games
H2 Spellements
H2 Math Puzzles
H2 All Games
H2 Special Edition
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Get Our Daily Newsletter
H2 Podcasts
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Empty heading
H2 Popular Stories
H3 Empty heading
H3 Empty heading
H3 Empty heading
H3 Empty heading
H3 Empty heading
H3 Empty heading
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.
3 links don't have an anchor text.
The number of internal links is ok.
There are 6 external links on this page.

Found links on this page

LinkAttributesAnchor text
/Anchor Skip to main content
/getsciam/90-day-offer/?utm_so...Subdomain Special Offer: $1 for 90 days
/Scientific American
/article/could-iran-have-been-...Nuclear weaponsJune 13, 2025 Could Iran Have Been Close to Making a Nuclear Weapon? Uranium Enrichment Explained
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/article/quantum-computers-sim...Quantum Computers Simulate Particle 'String Breaking' in a Physics Breakthrough
/article/tectonic-plates-can-i...IMG-ALT Aerila view of Jagged snow-covered peaks across a barren, rocky landscape
/article/tectonic-plates-can-i...Tectonic Plates Can ‘Infect’ One Another with Earth-Shaking Subduction Zones
/podcast/episode/djungarian-ha...IMG-ALT A photo composite featuring two furry hamsters and a planet logo with the words "Science Quickly"
/podcast/episode/djungarian-ha...These Hamster Dads Are a Cut above the Rest
/article/invasive-asian-needle...IMG-ALT Close up of an Asian Needle Ant (Brachyponera chinensis) worker walking on wood, carrying and moving a larva from a disturbed nest
/article/invasive-asian-needle...This Ant Has a Sting Worse Than a Fire Ant’s—Here’s How to Avoid It
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/article/mapping-nearby-stars-...IMG-ALT Glowing orange gas clouds with scattered bright newborn stars
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/article/five-climate-issues-t...Five Climate Issues to Watch When Trump Goes to Canada
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/issue/sa/2025/06-01/No Text
/article/surprising-ways-that-...IMG-ALT A number of suns floating with Red Blood cells
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/article/can-we-refreeze-the-a...IMG-ALT Landscape above arctic circle
/article/can-we-refreeze-the-a...Inside the Bold Geoengineering Work to Refreeze the Arctic’s Disappearing Ice
/article/why-mitochondria-are-...IMG-ALT Illustration of how mitochondria signal others in a maze-like organelle with people walking in it
/article/why-mitochondria-are-...Mitochondria Are More Than Powerhouses—They’re the Motherboard of the Cell
/article/the-end-of-the-univer...IMG-ALT Imagined quantum bubbles
/article/the-end-of-the-univer...The Quantum Bubble That Could Destroy the Universe
/article/surprising-genetic-ev...IMG-ALT Illustration of genes with human faces in it.
/article/surprising-genetic-ev...DNA Studies Uncover Unexpected Evolutionary Changes in Modern Humans
/issue/sa/2025/06-01/View Full Issue
/issues/Explore Archive
/games/spellements/latest/IMG-ALT A robot hand reaches toward bubbles with letters in them
/games/spellements/latest/Spellements
/games/math-puzzles/latest/IMG-ALT Illustration of a hand and multiple numbers against a purple background.
/games/math-puzzles/latest/Math Puzzles
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/games/All Games
/issue/special-editions/2025/0...No Text
/article/physicists-finally-kn...IMG-ALT Imagined illustration of atomic nuclei
/article/physicists-finally-kn...The Secret to the Strongest Force in the Universe
/article/tomorrows-quantum-com...IMG-ALT Quantum computer shown against a black backdrop.
/article/tomorrows-quantum-com...Tomorrow’s Quantum Computers Threaten Today’s Secrets. Here’s How to Protect Them
/article/quantum-weirdness-in-...IMG-ALT Purple and pink materials being conducted by electricity
/article/quantum-weirdness-in-...Quantum Weirdness in New Materials Bends the Rules of Physics
/article/the-little-known-orig...IMG-ALT Chien-Shiung Wu in laboratory setting working on equipment.
/article/the-little-known-orig...The Little-Known Origin Story behind the 2022 Nobel Prize in Physics
/article/physicists-make-matte...IMG-ALT The inside of a hexagon-shaped ultrahigh vacuum chamber.
/article/physicists-make-matte...Physicists Make Matter out of Light to Find Quantum Singularities
/article/why-arent-we-made-of-...IMG-ALT Illustration of two spheres nearly touching, with a bright yellow light near where they touch.
/article/why-arent-we-made-of-...Why Aren’t We Made of Antimatter?
/issue/special-editions/2025/0...Text duplicate View Full Issue
/issues/Text duplicate Explore Archive
/page/privacy-policy/Privacy Policy
/newsletters/Check out our other newsletters
/podcast/episode/djungarian-ha...June 13, 2025 These Hamster Dads Are a Cut above the Rest
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/podcast/episode/why-some-anim...Animal Lifespans Offer Clues about the Science of Aging
/podcast/episode/milky-way-and...IMG-ALT A small blue sphere orbits a larger blue sphere on a purple and blue background, with "Science Quickly" written below.
/podcast/episode/milky-way-and...New Doubts about Milky Way–Andromeda Collision, Explanation of 2023 Marine Heat Wave and Worms That Build Towers
/podcast/episode/the-national-...IMG-ALT A small blue sphere orbits a larger green sphere against a purple background, with "Science Quickly" written underneath.
/podcast/episode/the-national-...Summer Brings Hurricanes, Tornadoes and Extreme Heat—And an Underresourced National Weather Service
/podcast/episode/first-vaccine...Text duplicate IMG-ALT A small blue sphere orbits a larger blue sphere on a purple and blue background, with "Science Quickly" written below.
/podcast/episode/first-vaccine...Megalodon Diets, Teeth Sensitivity and a Bunch of Vaccine News
/podcasts/More Podcasts
/article/why-the-waymo-car-fir...TransportationJune 9, 2025 Thermal Runaway Explains Why Waymo Cars Burned So Completely in the Recent Los Angeles Protests
IMG-ALT Car engulfed by flames
/article/forest-preservation-t...Climate ChangeJune 6, 2025 Tree Planting Efforts Could Actually Worsen Climate Change
IMG-ALT Trees on fire in a forest during the Ross Moore Lake wildfire in British Columbia, Canada on July 28, 2023.
/article/inside-the-secret-mee...MathematicsJune 6, 2025 At Secret Math Meeting, Researchers Struggle to Outsmart AI
IMG-ALT Blue illustration of a face with numbers, implying math and AI.
/article/a-blockbuster-muon-an...Particle PhysicsJune 9, 2025 Do Wobbling Muons Point the Way to New Physics?
IMG-ALT The Muon g−2 ring sits in its detector hall amidst electronics racks, the muon beamline, and other equipment at Fermi National Accelerator Laboratory
/article/superheroes-represent...The Science of ParentingJune 9, 2025 Superheroes Represent Something Different to Today’s Kids
IMG-ALT Young girl pointing at camera in homemade superhero costume and cardboard plane wings
/article/science-tells-us-the-...ArgonautMay 14, 2025 Science Tells Us the U.S. Is Heading toward a Dictatorship
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/latest/Text duplicate View All Stories
/getsciam/Subscription Plans
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/latest-issue/Latest Issue
/News
/opinion/Text duplicate Opinion
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/podcasts/Text duplicate Podcasts
/games/Text duplicate Games
/travel/Travel
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/pressroom/Press Room
/page/frequently-asked-questio...FAQs
/page/contact-us/customer-serv...Contact Us
/standards-and-ethics/Standards & Ethics
/page/international/International Editions
/mediakit/Advertise
/accessibility-statement/Accessibility
/page/terms-of-use/Terms of Use
/page/privacy-policy/Text duplicate Privacy Policy
/page/california-consumer-priv...California Consumer Privacy Statement
/page/return-refund-policy/Return & Refund Policy
https://www.facebook.com/Scien...New window External Subdomain A-TITLE Facebook
https://www.instagram.com/scie...New window External Subdomain A-TITLE Instagram
https://www.linkedin.com/compa...New window External Subdomain A-TITLE LinkedIn
https://www.tiktok.com/@scient...New window External Subdomain A-TITLE TikTok
https://www.youtube.com/user/S...New window External Subdomain A-TITLE YouTube
https://www.reddit.com/r/Scien...New window External Subdomain A-TITLE Reddit

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.scientificamerican.com/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.17 seconds.
The file size of the HTML document is fine (264 kB).

HTTP Response Header

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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 8,634 referring domains.
This page has 537,602 backlinks.
This page has backlinks from 5,320 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

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www.scientificamerican.com
Scientific American
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

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