Science.howstuffworks.com - SEO Checker

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Overview of the SEO Check
Meta information
98% 
Page quality
94% 
Page structure
53% 
Link structure
90% 
Server
86% 
External factors
100% 
SEO Score
Response time
1.03 s
File size
211.70 kB
Words
996
Media files
13
Number of links
78 internal / 21 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Science | HowStuffWorks
The length of the page title is perfect. (227 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.
The length of the meta description is perfect. (887 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://science.howstuffworks.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Language defined in HTTP-Equiv meta tag: en-us
Server location: Germany
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 next meta tag on this page.
There is no rel prev meta tag on this page.
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.
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
templateChannelLanding
viewportwidth=device-width,initial-scale=1,minimum-scale=1
google-adsense-accountsites-9053884276298326
can-recommendfalse
descriptionHowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.
theme-color#151538
article:publisherhttps://www.howstuffworks.com
article:published_time2006-01-29T00:00:00-05:00
langen-us
twitter:dnton
fb:admins100001675325868
fb:app_id899104866837181
fb:pages20767777944
og:titleScience
og:urlhttps://science.howstuffworks.com/
og:site_nameHowStuffWorks
og:descriptionScience explains and demystifies the world through the objective of gathering and analyzing data. Explore the natural world, engineering, space, military technology, physics and even supernatural phenomena.
og:imagehttps://cdn.hswstatic.com/gif/science-90x130.gif
og:image:width90
og:image:height130
og:typearticle
X-UA-CompatibleIE=edge
content-languageen-us
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 996 words. That's ok.
41.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
11 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.
The average number of words per sentence of 15 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width,initial-scale=1,minimum-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 20 tags for 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
...atic.com/en-us/hsw/img/hsw-avatar-sm.pngNo alt attribute provided
...atic.com/en-us/hsw/img/hsw-avatar-sm.pngNo alt attribute provided
...atic.com/en-us/hsw/img/hsw-avatar-sm.pngNo alt attribute provided
...atic.com/en-us/hsw/img/hsw-avatar-sm.pngNo alt attribute provided
...atic.com/en-us/hsw/img/hsw-avatar-sm.pngNo alt attribute provided

Page structure

H1 heading
(Critically important)
Science
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (7 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 Science
H3 What Does 'Androgyny' Mean Today?
H3 What Do Rainbows Mean?
H3 Surprise! The Big Dipper Is an Asterism, Not a Constellation
H3 The 10 Longest Bridges in the World
H3 Trending in Science
H3 The Most Dangerous Mountain to Climb (and 14 Giving Steep Competition)
H3 15 Types of Gemstones to Add a Little Sparkle to Your Life
H3 The Most Dangerous Volcano in the World (and 9 Scary Others)
H3 Best Weather in the World: 10 Temperate Locales
H3 Engineering
H3 Environmental Science
H3 Forces of Nature
H3 Innovation
H3 Life Science
H3 Military
H3 Physical Science
H3 Science Dictionary
H3 Science Vs. Myth
H3 Space
H3 Transportation
Some anchor texts are used more than once.
There are 1 links with a trivial anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 21 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.howstuffworks.com/External Subdomain No Text
/Subdomain Science
https://electronics.howstuffwo...External Subdomain Tech
https://home.howstuffworks.com/External Subdomain Home & Garden
https://auto.howstuffworks.com/External Subdomain Auto
https://people.howstuffworks.c...External Subdomain Culture
https://health.howstuffworks.com/External Subdomain Health
https://money.howstuffworks.com/External Subdomain Money
https://animals.howstuffworks....External Subdomain Animals
https://lifestyle.howstuffwork...External Subdomain Lifestyle
https://entertainment.howstuff...External Subdomain Entertainment
https://play.howstuffworks.com/External Subdomain Quizzes
/Subdomain Text duplicate Science
https://electronics.howstuffwo...External Subdomain Text duplicate Tech
https://home.howstuffworks.com/External Subdomain Text duplicate Home & Garden
https://auto.howstuffworks.com/External Subdomain Text duplicate Auto
https://people.howstuffworks.c...External Subdomain Text duplicate Culture
https://health.howstuffworks.com/External Subdomain Text duplicate Health
https://money.howstuffworks.com/External Subdomain Text duplicate Money
https://animals.howstuffworks....External Subdomain Text duplicate Animals
https://lifestyle.howstuffwork...External Subdomain Text duplicate Lifestyle
https://entertainment.howstuff...External Subdomain Text duplicate Entertainment
https://play.howstuffworks.com/External Subdomain Text duplicate Quizzes
/life/botany/tallest-tree-in-w...Subdomain These Giants Are the 7 Tallest Trees in the World
/life/botany/tallest-tree-in-w...Subdomain Trivial anchor text
Read More
/environmentalSubdomain Environmental Science
/physical-science-channel.htmSubdomain Physical Science
/innovationSubdomain Innovation
/lifeSubdomain Life Science
/engineering-channel.htmSubdomain Engineering
/science-vs-mythSubdomain Science Vs. Myth
/transportSubdomain Transportation
/military-channel.htmSubdomain Military
/natureSubdomain Forces of Nature
/space-channel.htmSubdomain Space
/dictionarySubdomain Dictionary
/life/genetic/androgynous.htmSubdomain What Does 'Androgyny' Mean Today?
IMG-ALT What Does 'Androgyny' Mean Today?
/nature/climate-weather/atmosp...Subdomain What Do Rainbows Mean?
IMG-ALT What Do Rainbows Mean?
/big-dipper.htmSubdomain Surprise! The Big Dipper Is an Asterism, Not a Constellation
IMG-ALT Surprise! The Big Dipper Is an Asterism, Not a Constellation
/engineering/civil/longest-bri...Subdomain The 10 Longest Bridges in the World
IMG-ALT The 10 Longest Bridges in the World
/environmental/earth/most-dang...Subdomain The Most Dangerous Mountain to Climb (and 14 Giving Steep Competition)
IMG-ALT The Most Dangerous Mountain to Climb (and 14 Giving Steep Competition)
/environmental/earth/geology/t...Subdomain 15 Types of Gemstones to Add a Little Sparkle to Your Life
IMG-ALT 15 Types of Gemstones to Add a Little Sparkle to Your Life
/nature/natural-disasters/most...Subdomain The Most Dangerous Volcano in the World (and 9 Scary Others)
IMG-ALT The Most Dangerous Volcano in the World (and 9 Scary Others)
/nature/climate-weather/best-w...Subdomain Best Weather in the World: 10 Temperate Locales
IMG-ALT Best Weather in the World: 10 Temperate Locales
/engineering-channel.htmSubdomain Text duplicate Engineering
/types-of-swords.htmSubdomain 10 Types of Swords for All Sorts of Circumstances FIND OUT MORE
/russian-lathe-accident.htmSubdomain A Horrifying Russian Lathe Accident Highlights Vital Safety Protocols FIND OUT MORE
/engineering/structural/talles...Subdomain The Tallest Roller Coaster in the World Stood for 19 Years FIND OUT MORE
/engineering/civil/steepest-ro...Subdomain The Steepest Road in the World, Plus 9 Rival Inclines FIND OUT MORE
/environmentalSubdomain Text duplicate Environmental Science
/environmental/earth/what-coun...Subdomain What Country Has the Most Islands? Surprisingly Not a Tropical One FIND OUT MORE
/environmental/earth/geology/b...Subdomain 13 Brown Gemstones for Understated Elegance FIND OUT MORE
/environmental/earth/geology/r...Subdomain 10 Red Gemstones That Evoke Power and Bold Luxury FIND OUT MORE
/environmental/earth/geology/y...Subdomain 10 Yellow Gemstones to Add Luster to Your Jewelry Collection FIND OUT MORE
/natureSubdomain Text duplicate Forces of Nature
/nature/climate-weather/meteor...Subdomain 10 States With the Best Weather Year-round FIND OUT MORE
/nature/climate-weather/meteor...Subdomain Find the Best Weather in the U.S. in These 8 Cities FIND OUT MORE
/nature/natural-disasters/wors...Subdomain The Worst Flood in History (and 9 Other Catastrophic Floods) FIND OUT MORE
/nature/natural-disasters/tri-...Subdomain The Tri-State Tornado of 1925 Traveled Over 200 Miles FIND OUT MORE
/innovationSubdomain Text duplicate Innovation
/innovation/edible-innovations...Subdomain Who Made Fanta? Was It Really the Nazis' Favorite Soda? FIND OUT MORE
/innovation/edible-innovations...Subdomain 'Mad Honey' Comes From Bees That Gather This Specific Nectar FIND OUT MORE
/innovation/inventions/dictaph...Subdomain The Evolution of Dictaphones: A Comprehensive History FIND OUT MORE
/innovation/inventions/frankli...Subdomain The Evolution of the Franklin Stove: From Invention to Modern Efficiency FIND OUT MORE
/lifeSubdomain Text duplicate Life Science
/life/biology-fields/central-h...Subdomain Central Heterochromia: When to Worry About Eye Color FIND OUT MORE
/life/inside-the-mind/human-br...Subdomain Phineas Gage and the Birth of Modern Neuroscience FIND OUT MORE
/life/biology-fields/types-of-...Subdomain 10 Types of Noses to Spot in a Crowd FIND OUT MORE
/life/botany/types-of-trees.htmSubdomain 3 Types of Trees You'll Find All Over the Planet FIND OUT MORE
/military-channel.htmSubdomain Text duplicate Military
/ghillie.htmSubdomain Ghillie: Fishing Aid and Inspiration for Camo Suits FIND OUT MORE
/strongest-military-in-the-wor...Subdomain What Is the Strongest Military in the World? FIND OUT MORE
/explosion-land-water1.htmSubdomain Anatomy of an Underwater Explosion FIND OUT MORE
/drive-fv432-tank-video.htmSubdomain YOU Can Drive a Tank! FIND OUT MORE
/physical-science-channel.htmSubdomain Text duplicate Physical Science
/types-of-alcohol.htmSubdomain 7 Types of Alcohol for Drinking, Cleaning and More FIND OUT MORE
/mummification.htmSubdomain What Does Mummification Have to Do With Gene Hackman? FIND OUT MORE
/rainbow-colors.htmSubdomain Rainbow Colors Always Appear in the Same Order FIND OUT MORE
/most-abundant-element-on-eart...Subdomain What Is the Most Abundant Element on Earth? Not Carbon FIND OUT MORE
/dictionarySubdomain Science Dictionary
/dictionary/km.htmSubdomain Explaining the Kilometer (km) and Converting to Miles FIND OUT MORE
/dictionary/independent-variab...Subdomain The Independent Variable vs. Dependent Variable in Research FIND OUT MORE
/dictionary/famous-scientists/...Subdomain Quiz: How Much Do You Know About Stephen Hawking? TAKE THE QUIZ
/dictionary/famous-scientists/...Subdomain 10 Cool Things About Carl Sagan FIND OUT MORE
/science-vs-mythSubdomain Text duplicate Science Vs. Myth
/science-vs-myth/strange-creat...Subdomain The Beast of Bray Road: Wisconsin's Claim to Cryptid Fame FIND OUT MORE
/science-vs-myth/strange-creat...Subdomain Lougawou: A Haitian Vodou Werewolf FIND OUT MORE
/science-vs-myth/strange-creat...Subdomain Orang Pendek: New Sumatran Primate or Just Another Cryptid? FIND OUT MORE
/science-vs-myth/strange-creat...Subdomain La Lechuza: Enormous Owl or Scorned Shapeshifter? FIND OUT MORE
/space-channel.htmSubdomain Text duplicate Space
/types-of-eclipses.htmSubdomain 7 Types of Eclipses: Lunar, Solar and ... Hybrid? FIND OUT MORE
/space/aliens-ufos/tall-whites...Subdomain Tall Whites: The Classic Extraterrestrial Archetype FIND OUT MORE
/famous-astronauts.htmSubdomain 15 Famous Astronauts Who Expanded Our Universe FIND OUT MORE
/geomagnetic-storm.htmSubdomain Why a Geomagnetic Storm Makes for Pretty Skies and Tech Scares FIND OUT MORE
/transportSubdomain Text duplicate Transportation
/transport/largest-ship-in-the...Subdomain The Largest Ship in the World and 10 Runners-up FIND OUT MORE
/transport/flight/modern/longe...Subdomain The Longest Flight in the World Takes Almost 19 Hours FIND OUT MORE
/transport/flight/modern/faste...Subdomain The Fastest Fighter Jet in History: The NASA X-43 FIND OUT MORE
/transport/flight/modern/airli...Subdomain The Secrets of Airline Travel Quiz TAKE THE QUIZ

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://science.howstuffworks.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 slow (1.03 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.
The file size of the HTML document is fine (212 kB).

HTTP Response Header

NameValue
content-typetext/html;charset=UTF-8
dateWed, 16 Jul 2025 13:38:42 GMT
expiresWed, 16 Jul 2025 15:38:42 -0400
content-encodinggzip
servernginx
x-cacheMiss from cloudfront
via1.1 9ed190c9d6b2f812d19cbb317856ed88.cloudfront.net (CloudFront)
x-amz-cf-popFRA60-P6
x-amz-cf-idXdoo0764vvrj4gJUT8rbKvPbNIlQZkt1pfVI_UzJKkQhdabFaoJBOQ==
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 303 referring domains.
This page has 653 backlinks.
This page has backlinks from 282 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /framed.htm
Disallow: /editor/

User-agent: Mediapartners-Google
Disallow:

Sitemap: https://science.howstuffworks.com/science-sitemap-index.xml

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Search preview

science.howstuffworks.com
Science | HowStuffWorks
HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

Most important keywords

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

KeywordResultRecheck
Science89%Check
Life Science72%Check
Physical Science71%Check
HowStuffWorks69%Check
Earth Science69%Check
World56%Check
Life56%Check
physical world54%Check
Physical50%Check
Earth46%Check
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