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Meta information
80% 
Page quality
85% 
Page structure
70% 
Link structure
33% 
Server
97% 
External factors
100% 
SEO Score
Response time
0.45 s
File size
124.40 kB
Words
1549
Media files
54
Number of links
199 internal / 46 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Encyclopedia Britannica | Britannica
There are word repetitions in the page title.
The length of the page title is perfect. (319 pixels out of 580 max pixel length)
Meta description
(Critically important)
Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
The meta description is too long: 1058 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.britannica.com/
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
(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 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
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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
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The favicon is linked correctly.

Meta tags

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viewportwidth=device-width, initial-scale=1.0
descriptionExplore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
keywordsbritannica, reference, online, encyclopedia, encyclopaedia, store, dictionary, thesaurus
langen
twitter:cardsummary_large_image
twitter:site@britannica
twitter:imagehttps://cdn.britannica.com/mendel-resources/3-146/images/EBLogo.jpg?v=3.146.20
twitter:descriptionExplore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
fb:app_id1887621861548296
og:typeWEBSITE
og:titleEncyclopedia Britannica | Britannica
og:descriptionExplore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
og:site_nameEncyclopedia Britannica
og:urlhttps://www.britannica.com/
og:imagehttps://cdn.britannica.com/mendel-resources/3-146/images/EBLogo.jpg?v=3.146.20
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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 1549 words. That's ok.
35.3% of the text are stop words.
The page contains a listing, which indicates a good text layout.
26 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 16.81 words is good.
Frames
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This page does not use a frameset.
Mobile optimization
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No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 31 tags for this page.
Image SEO
(Somewhat important)
1 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
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This page is optimized perfectly for social networks.
Additional markup
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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
.../mendel/eb-logo/MendelNewThistleLogo.pngEncyclopedia Britannica
...ollo-11-Neil.jpg?w=727&h=410&c=crop&q=80Liftoff and flight to the Moon of Apollo 11 with astronauts Neil Armstrong, Edwin Aldrin, and Michael Collins. After landing at Tranquility Bay, Armstrong became the first person to set foot on the Moon.
...March-8-2002.jpg?w=354&h=200&c=crop&q=80Astronauts John M. Grunsfeld and Richard Linnehan are photographed near the giant Hubble Space Telescope temporarily hosted in the Space Shuttle Columbia's cargo bay at the close of the fifth and final session of extravehicular activity.
...unar-module.webp?w=354&h=200&c=crop&q=80Animated GIF composite of two Apollo 15 video clips. First clip: Landing at Hadley Rille. Second clip: Jim Irwin's descent to the surface of the Moon from the lunar module.
...-Congress-on-2010.jpg?w=400&h=225&c=cropCongresswoman Gabrielle Giffords (D-AZ) met with constituents one-on-one at a Safeway in Duval Mine Road and La Canada in Green Valley, AZ, May 22, 2010. Gabby Giffords assassination Jared Lee Loughner Congress on Your Corner Jan. 8, 2011. (see notes)
...runk-Asian-mother.jpg?w=400&h=225&c=cropAsian elephant (Elephas maximus) mother with baby elephant. Close up mammal
...Ahmedabad-Airport.jpg?w=400&h=225&c=cropAHMEDABAD, INDIA- JUNE 12, 2025: Members of the investigation team examine the site of the Air India flight crash on June 12, 2025, in Ahmedabad, India. An Air India Boeing 787-8 Dreamliner operating as Flight AI171 from Ahmedabad to London's Gatwick Airport crashed shortly after takeoff carrying 232 passengers and 10 crew members. The plane crashed on a resident doctors' hostel in Ahmedabad, which suffered major damage in the accident. India, Asia, Crash, Accident,
...und-Baffin-Island.jpg?w=400&h=225&c=cropGreenland shark under ice (Somniosus microcephalus), Lancaster Sound, northern Baffin Island, Nunavut, Canada.
...nica-money-global-nav-logo-250x30-2x.pngBritannica Money
...l-Act-July-4-2025.jpg?w=400&h=225&c=cropA press photo of President Donald Trump sitting at a desk holding a signed document, surrounded by applauding people in formal attire outside the White House.
...hair-at-the-beach.jpg?w=400&h=225&c=cropA photo illustration of a red toy robot reclines on a wooden beach chair under palm trees on a sandy tropical beach with ocean waves in the background.
...money-highlighted.jpg?w=400&h=225&c=cropChart illustrating a long call option payoff with profit/loss on the vertical axis and stock price on the horizontal, highlighting breakeven and strike price.
...ple-shaking-hands.jpg?w=400&h=225&c=cropBusiness people shaking hands.
...mer-School-Banner.jpg?w=400&h=225&c=cropCritical Thinking Challenge
...ew-York-City-2019.jpg?w=400&h=225&c=cropDemocratic Socialists of America
...or-US-citizenship.jpg?w=400&h=225&c=cropA boy becomes a U.S. citizen
...-november-19-2024.jpg?w=400&h=225&c=cropSanctuary city advocates in LA
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...ope_promo_4_3_2x.webp?w=629&h=472&c=cropTightrope
...m/GAME/blossom1x.jpeg?w=629&h=472&c=cropBlossom
...GAME/octordle-4x3.png?w=629&h=472&c=cropOctordle
.../kstm/GAME/pilfer.png?w=629&h=472&c=cropPilfer
...AME/missingLetter.png?w=629&h=472&c=cropThe Missing Letter
...AME/twofer-goofer.png?w=629&h=472&c=cropTwofer Goofer
...tm/GAME/victordle.png?w=629&h=472&c=cropVictordle
...GAME/sudoku_Icon1.png?w=629&h=472&c=cropSudoku
...hes-national-park.jpg?w=400&h=225&c=cropBeautiful Image taken at Arches National Park in Utah
.../Parthenon-Athens.jpg?w=400&h=225&c=cropParthenon, Acropolis, Athens, Greece.
.../Dromedary-camels.jpg?w=400&h=225&c=cropDromedary camels (Camelus dromedarius). Animals, mammals.
...516/Hello-in-Thai.jpg?w=400&h=225&c=cropThe word "Hello" written in Thai
...D/Casablanca-film.jpg?w=400&h=225&c=cropPublicity still with Humphrey Bogart and Ingrid Bergman from the motion picture film "Casablanca" (1942); directed by Michael Curtiz. (cinema, movies)
...Jr-Malcolm-X-1964.jpg?w=400&h=225&c=cropMartin Luther King, Jr. (left of centre) and Malcolm X (right) waiting for a press conference, 1964.
...s-composite-image.jpg?w=400&h=225&c=cropName that Thing - Tools, composite image: calipers, hammer claw, pestle, trowel
...riever-dog-breeds.jpg?w=400&h=225&c=cropVarious retriever dog breeds sitting in a row. L-R: curly coated retriever, golden retriever, Labrador retriever, duck tolling retriever, flat coated retriever. hunting sporting dogs
...emon-pie-meringue.jpg?w=400&h=225&c=cropSlices of lemon pie topped with meringue.
...ary-November-1991.jpg?w=400&h=225&c=crop(From left): First Ladies Barbara Bush, Nancy Reagan, Rosalynn Carter, Betty Ford, Pat Nixon, and Lady Bird Johnson at the Dedication of the Ronald Reagan Presidential Library, Simi Valley, California; November 4, 1991. (first lady)
...-138-29BF6393/video-Marie-Antionette.jpgDid Marie-Antoinette say “Let them eat cake”?
...o-Marie-Antionette.jpg?w=100&h=75&c=cropDid Marie-Antoinette say “Let them eat cake”?
...rs-Reign-of-Terror.jpg?w=100&h=75&c=cropWhat happened during the Reign of Terror?
...-French-Revolution.jpg?w=100&h=75&c=cropWhat does Bastille Day celebrate?
...on-become-a-legend.jpg?w=100&h=75&c=cropThe true story of Napoleon Bonaparte
...keting/Premium-alldevices-white-2024.jpgNo alt attribute provided
...e-Jerusalem-Israel.jpg?w=100&h=75&c=cropIsrael-Palestine Conflict Explained: History, Maps, & Dates
...ber-8-2005-Kashmir.jpg?w=100&h=75&c=cropKashmir earthquake, 2005
...lorence-Sabin-1915.jpg?w=100&h=75&c=cropFlorence Sabin, c. 1915.
...enicillin-medicine.jpg?w=100&h=75&c=cropAlexander Fleming
...317B6E/Bill-Moyers.jpg?w=100&h=75&c=cropMinister, aide, journalist
...gwriter-model-1969.jpg?w=100&h=75&c=cropBetty Davis
...Bombus-bimaculatus.jpg?w=100&h=75&c=cropHymentoptera Ants, Bees, and Wasps
...50-FFA526C9/beaver.jpg?w=100&h=75&c=cropBeaver
...evada-Arizona-rock.jpg?w=100&h=75&c=cropLake Mead
...losseum-Rome-Italy.jpg?w=100&h=75&c=cropColosseum
...5-by-Joan-Mitchell.jpg?w=100&h=75&c=cropJoan Mitchell: City Landscape
...od-california-1993.jpg?w=100&h=75&c=crop“Girls to the front!”

Page structure

H1 heading
(Critically important)
Britannica Premium Subscription
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Britannica Premium Subscription
H1 Unlock Exclusive Content!
H2 “The Eagle Has Landed”
H2 New on Britannica
H2 Popular ProCon Debate Topics
H2 Featured Games
H2 Trending Quizzes
H2 Featured Videos
H2 Explore Britannica
H2 Calculators
H2 More From Britannica
H3 Discover More
H3 Celebrating Mandela
H3 History & Society
H3 Science & Tech
H3 Biographies
H3 Animals & Nature
H3 Geography & Travel
H3 Arts & Culture
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (46) on this page.

Found links on this page

LinkAttributesAnchor text
https://premium.britannica.com...New window External Subdomain SUBSCRIBE
https://premium.britannica.com...New window External Subdomain Text duplicate SUBSCRIBE
https://premium.britannica.com...New window External Subdomain Text duplicate SUBSCRIBE
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/Science-TechScience & Tech
/BiographiesBiographies
/Animals-NatureAnimals & Nature
/Geography-TravelGeography & Travel
/Arts-CultureArts & Culture
https://www.britannica.com/proconProCon
https://www.britannica.com/moneyMoney
/quiz/browseGames & Quizzes
https://www.britannica.com/videosVideos
/on-this-dayOn This Day
/one-good-factOne Good Fact
/dictionaryDictionary
/new-articlesNew Articles
/History-SocietyText duplicate History & Society
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/browse/World-HistoryWorld History
/Science-TechText duplicate Science & Tech
/browse/Health-MedicineHealth & Medicine
/browse/ScienceScience
/browse/TechnologyTechnology
/BiographiesText duplicate Biographies
/browse/biographiesBrowse Biographies
/Animals-NatureText duplicate Animals & Nature
/browse/Birds-Reptiles-Vertebr...Birds, Reptiles & Other Vertebrates
/browse/Bugs-Mollusks-Inverteb...Bugs, Mollusks & Other Invertebrates
/browse/EnvironmentEnvironment
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/browse/MammalsMammals
/browse/PlantsPlants
/Geography-TravelText duplicate Geography & Travel
/browse/Geography-TravelText duplicate Geography & Travel
/Arts-CultureText duplicate Arts & Culture
/browse/Entertainment-Pop-CultureEntertainment & Pop Culture
/browse/LiteratureLiterature
/browse/Sports-RecreationSports & Recreation
/browse/Visual-ArtsVisual Arts
/gallery/browseImage Galleries
/podcastsPodcasts
/summarySummaries
/questionTop Questions
https://kids.britannica.com/External Subdomain Britannica Kids
/chatbotAsk the Chatbot
/quiz/browseText duplicate Games & Quizzes
/History-SocietyText duplicate History & Society
/Science-TechText duplicate Science & Tech
/BiographiesText duplicate Biographies
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/Geography-TravelText duplicate Geography & Travel
/Arts-CultureText duplicate Arts & Culture
https://www.britannica.com/proconText duplicate ProCon
https://www.britannica.com/moneyText duplicate Money
https://www.britannica.com/videosText duplicate Videos
/on-this-dayJuly 20, 2025
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/topic/Apollo-11Subdomain Apollo 11
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/topic/Apollo-11New window Subdomain Apollo 11’s Incredible Journey to the Moon
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/list/5-unforgettable-moments-...5 Unforgettable Moments in the History of Spaceflight and Exploration
/story/how-many-people-have-be...IMG-ALT Animated GIF composite of two Apollo 15 video clips. First clip: Landing at Hadley Rille. Second clip: Jim Irwin's descent to the surface of the Moon from th...
/story/how-many-people-have-be...How Many People Have Been to the Moon?
/story/moon-landing-just-the-f...The Moon Landing: Just the Facts
/story/what-have-we-left-on-th...What Have We Left on the Moon?
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/biography/Nelson-MandelaSubdomain Nelson Mandela
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/topic/apartheidSubdomain system of racial segregation
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/biography/Nelson-MandelaNew window Subdomain Anchor His name
/topic/TembuSubdomain Tembu
/sports/boxingNew window Subdomain His sport
/sports/boxingSubdomain boxing
/place/Nelson-Mandela-Legacy-S...New window Subdomain Legacy sites
/topic/World-Heritage-siteSubdomain UNESCO World Heritage
/place/Nelson-Mandela-Legacy-S...Subdomain Nelson Mandela Legacy Sites
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/new-articlesSubdomain New on Britannica
/topic/Assassinations-in-the-U...IMG-ALT Congresswoman Gabrielle Giffords (D-AZ) met with constituents one-on-one at a Safeway in Duval Mine Road and La Canada in Green Valley, AZ, May 22, 2010. Gab...
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/animal/Asian-elephantIMG-ALT Asian elephant (Elephas maximus) mother with baby elephant. Close up mammal
/animal/Asian-elephantAsian elephant
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/event/Air-India-flight-171IMG-ALT AHMEDABAD, INDIA- JUNE 12, 2025: Members of the investigation team examine the site of the Air India flight crash on June 12, 2025, in Ahmedabad, India. An A...
/event/Air-India-flight-171Air India Flight 171
/place/AhmedabadSubdomain Ahmedabad
/science/What-Animal-Has-the-L...IMG-ALT Greenland shark under ice (Somniosus microcephalus), Lancaster Sound, northern Baffin Island, Nunavut, Canada.
/science/What-Animal-Has-the-L...The longest-living animal
/animal/tortoiseSubdomain tortoise
/science/life-spanSubdomain living for 500 years
https://www.britannica.com/moneySubdomain IMG-ALT Britannica Money
/money/browse/investingInvesting
/money/browse/TradingTrading
/money/browse/retirementRetirement
/money/browse/household-financeHousehold Finance
/money/browse/history-and-theoryFinance & the Economy
/money/browse/CompaniesCompanies
/money/big-beautiful-bill-act-...Subdomain IMG-ALT A press photo of President Donald Trump sitting at a desk holding a signed document, surrounded by applauding people in formal attire outside the White House.
/money/big-beautiful-bill-act-...Subdomain How the One Big Beautiful Bill Act could affect your finances
/money/ai-for-retirement-finan...Subdomain IMG-ALT A photo illustration of a red toy robot reclines on a wooden beach chair under palm trees on a sandy tropical beach with ocean waves in the background.
/money/ai-for-retirement-finan...Subdomain How to use AI for retirement and financial planning
/money/option-moneynessSubdomain IMG-ALT Chart illustrating a long call option payoff with profit/loss on the vertical axis and stock price on the horizontal, highlighting breakeven and strike price.
/money/option-moneynessSubdomain Understanding options: In the money, at the money, and out of the money
/money/what-is-private-equity-...Subdomain IMG-ALT Business people shaking hands.
/money/what-is-private-equity-...Subdomain Private equity: What is it, and can I invest in it?
https://www.britannica.com/proconPopular ProCon Debate Topics
/procon/ProCons-Free-Summer-Sc...Subdomain IMG-ALT Critical Thinking Challenge
/procon/ProCons-Free-Summer-Sc...Subdomain A Current Affairs Program
/procon/American-socialism-debateSubdomain IMG-ALT Democratic Socialists of America
/procon/American-socialism-debateSubdomain American Socialism
/procon/immigration-debateSubdomain IMG-ALT A boy becomes a U.S. citizen
/procon/immigration-debateSubdomain Immigration
/procon/sanctuary-cities-debateSubdomain IMG-ALT Sanctuary city advocates in LA
/procon/sanctuary-cities-debateSubdomain Sanctuary Cities
/quiz/browseSee All
https://www.merriam-webster.co...External Subdomain IMG-ALT Quordle
https://www.merriam-webster.co...External Subdomain Text duplicate Quordle
/quiz/tightropeIMG-ALT Tightrope
/quiz/tightropeText duplicate Tightrope
https://www.merriam-webster.co...External Subdomain IMG-ALT Blossom
https://www.merriam-webster.co...External Subdomain Text duplicate Blossom
/games/octordleSubdomain IMG-ALT Octordle
/games/octordleSubdomain Text duplicate Octordle
https://www.merriam-webster.co...External Subdomain IMG-ALT Pilfer
https://www.merriam-webster.co...External Subdomain Text duplicate Pilfer
https://www.merriam-webster.co...External Subdomain IMG-ALT The Missing Letter
https://www.merriam-webster.co...External Subdomain Text duplicate The Missing Letter
https://www.merriam-webster.co...External Subdomain IMG-ALT Twofer Goofer
https://www.merriam-webster.co...External Subdomain Text duplicate Twofer Goofer
/games/victordle/Subdomain IMG-ALT Victordle
/games/victordle/Subdomain Text duplicate Victordle
/games/sudokuSubdomain IMG-ALT Sudoku
/games/sudokuSubdomain Text duplicate Sudoku
/quiz/browseSee All Quizzes
/quiz/where-in-america-is-thatIMG-ALT Beautiful Image taken at Arches National Park in Utah
/quiz/where-in-america-is-thatWhere in America is That?
/quiz/from-athena-to-zeus-basi...IMG-ALT Parthenon, Acropolis, Athens, Greece.
/quiz/from-athena-to-zeus-basi...From Athena to Zeus: Basics of Greek Mythology
/quiz/ultimate-animals-quizIMG-ALT Dromedary camels (Camelus dromedarius). Animals, mammals.
/quiz/ultimate-animals-quizUltimate Animals Quiz
/quiz/guess-the-languageIMG-ALT The word "Hello" written in Thai
/quiz/guess-the-languageGuess the Language! Quiz
/quiz/best-picture-movie-quote...IMG-ALT Publicity still with Humphrey Bogart and Ingrid Bergman from the motion picture film "Casablanca" (1942); directed by Michael Curtiz. (cinema, movies)
/quiz/best-picture-movie-quote...Best Picture Movie Quote Quiz
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/quiz/name-that-thing-toolsName That Thing: Tools
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/quiz/first-ladies-of-the-unit...First Ladies of the United States Quiz
https://www.britannica.com/videosSee All Videos
/video/video-Marie-Antionette/...Subdomain Did Marie-Antoinette say “Let them eat cake”?
/video/video-Marie-Antionette/...Subdomain Text duplicate IMG-ALT Did Marie-Antoinette say “Let them eat cake”?
/video/Top-questions-answers-R...Subdomain What happened during the Reign of Terror?
/video/Top-questions-answers-R...Subdomain Text duplicate IMG-ALT What happened during the Reign of Terror?
/video/French-revolutionaries-...Subdomain What does Bastille Day celebrate?
/video/French-revolutionaries-...Subdomain Text duplicate IMG-ALT What does Bastille Day celebrate?
/video/how-did-Napoleon-become...Subdomain The true story of Napoleon Bonaparte
/video/how-did-Napoleon-become...Subdomain Text duplicate IMG-ALT The true story of Napoleon Bonaparte
https://premium.britannica.com...External Subdomain No Text
https://premium.britannica.com...External Subdomain Subscribe Now!
/History-SocietyText duplicate History & Society
/explore/israeli-palestinian-c...IMG-ALT Israel-Palestine Conflict Explained: History, Maps, & Dates
/explore/israeli-palestinian-c...The Israel-Palestine Conflict Explained
/list/6-of-the-worlds-deadlies...Subdomain IMG-ALT Kashmir earthquake, 2005
/list/6-of-the-worlds-deadlies...Subdomain 6 of the World’s Deadliest Natural Disasters
/Science-TechText duplicate Science & Tech
/topic/Women-in-Science-2100321Subdomain IMG-ALT Florence Sabin, c. 1915.
/topic/Women-in-Science-2100321Subdomain Women in Science: A History
/topic/10-influential-physicia...Subdomain IMG-ALT Alexander Fleming
/topic/10-influential-physicia...Subdomain 10 Influential Physicians and Medical Researchers
/BiographiesText duplicate Biographies
/biography/Bill-MoyersSubdomain IMG-ALT Minister, aide, journalist
/biography/Bill-MoyersSubdomain Bill Moyers
/biography/Betty-DavisSubdomain IMG-ALT Betty Davis
/biography/Betty-DavisSubdomain Text duplicate Betty Davis
/Animals-NatureText duplicate Animals & Nature
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/explore/hymenoptera-ants-bees...All Hail the Queens: Ants, Bees, and Wasps
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/Arts-CultureText duplicate Arts & Culture
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