Sciencehistory.org - SEO Checker

Overview of the SEO Check
Meta information
100% 
Page quality
78% 
Page structure
79% 
Link structure
88% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.09 s
File size
173.60 kB
Words
477
Media files
35
Number of links
76 internal / 14 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Science History Institute
The length of the page title is perfect. (218 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science.
The length of the meta description is perfect. (836 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.sciencehistory.org/
There is a valid canonical link specified.
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 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
(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
viewportwidth=device-width, initial-scale=1
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionThe Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science.
msapplication-TileImagehttps://www.sciencehistory.org/wp-content/uploads/2023/04/cropped-favicon-300x300.png
article:publisherhttps://www.facebook.com/SciHistoryOrg/
article:modified_time2025-07-24T17:24:32+00:00
langen-us
twitter:cardsummary_large_image
twitter:titleScience History Institute
twitter:descriptionThe Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science.
twitter:imagehttps://www.sciencehistory.org/wp-content/uploads/2023/06/building_facade_2023.jpeg
twitter:site@scihistoryorg
og:localeen_US
og:typewebsite
og:titleScience History Institute
og:descriptionThe Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science.
og:urlhttps://www.sciencehistory.org/
og:site_nameScience History Institute
og:imagehttps://www.sciencehistory.org/wp-content/uploads/2023/06/building_facade_2023.jpeg
og:image:width2000
og:image:height1213
og:image:typeimage/jpeg
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 477 words on this page. Good pages should have about 800 words of useful content.
27.7% 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.
5 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 17.11 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" 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 10 tags for this page.
Image SEO
(Somewhat important)
7 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
/wp-content/uploads/2023/04/shi-logo.pngNo alt attribute provided
/wp-content/uploads/2023/04/shi-logo.pngNo alt attribute provided
...strawberry_shortcake_hero2-1920x867.jpegillustration of a strawberry shortcake
.../strawberry_shortcake_hero2-600x600.jpegillustration of a strawberry shortcake
.../06/dagwood_splits_the_atom-1920x867.jpgcomic book illustration with BANG at the center
...5/06/dagwood_splits_the_atom-600x600.jpgcomic book illustration with BANG at the center
...024/07/lunch_kids_colorized-1920x867.jpgcolorized image of students eating lunch
...2024/07/lunch_kids_colorized-600x600.jpgcolorized image of students eating lunch
...ws_library_laptop_homepage-1920x867.jpegscholars doing research in a library
.../06/fellows_library_laptop_homepage.jpegscholars doing research in a library
...t/uploads/2022/07/baseline1-small_xs.gifgif of chemist in a lab
...otte_Gerson_LA_Fair_hero_alt-600x360.jpgNewspaper photo clipping of a woman seated at a table selling book with a sign titled “Gerson Therapy” above
...025/04/crystals_of_fats_BG2-600x360.jpegillustrations of fat crystals
...s/2025/07/paul_de_kruif_1944-600x360.jpgman in a hat smoking a pipe
.../06/kids_lunch_table_social-600x360.jpegBlack and white photo of school children sitting around a table eating lunch
...MrPolaroid_big-square-canvas-600x360.jpgcollage of Polaroid photos promoting Mr. Polaroid film
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.../04/object_explorer_closeup-300x300.jpegplastic yellow oven mitt and flip flop
...s/2023/04/RGNb00000000.37_0_0-scaled.jpgrare books
....Hero_.FINAL_-e1680860328536-300x300.jpgillustration of man blowing out a fire
.../linus_pauling_lecture_still-300x300.pngteacher at chalkboard
...ploads/2023/05/teddy_ruxpin-300x300.jpegstuffed mechanical teddy bear
...04/fellows_library_2022_0-1-300x300.jpegA Beckman Center fellow conducts research in the Othmer Library.
...instagram-feed-images/scihistoryorg.webpNo alt attribute provided
...ugins/instagram-feed/img/placeholder.png💥BOOM! BANG! POW!💥 It's First Friday: Gene-ius Quizzo!⁠ ⁠ 🦕 Are you a Jurassic Park superfan? Think you know your genetically modified villains and heroes? Next month on Friday, August 1, join us at 6pm for a lively night of Quizzo!⁠ ⁠ Put your pop culture knowledge to the test in a fun trivia game inspired by your favorite films—and the real science behind them. Plus, we’ll have fun prizes for the winners!⁠ ⁠ ‼️PLUS‼️⁠ ⁠ This First Friday, we’re also celebrating the launch of the new season of our Distillations podcast, premiering Tuesday, August 5!⁠ ⁠ 🎙️The new season dives deep into the fascinating history of genetic engineering and the birth of the biotech industry—from groundbreaking innovations and ethical dilemmas, to dreams and controversies.⁠ ⁠ Catch our special preview episodes now, and join us for this evening of science, storytelling, and trivia fun. We can’t wait to see you there!⁠ ⁠ 👉️ Tap the link in bio for more info!⁠
...ugins/instagram-feed/img/placeholder.png☀️ Make sure you're wearing sunscreen every day!⁠ ⁠ ⁠ Pictured here: RAY-NOX Sun Protectant. This early sunscreen, 10-15% PABA (para-aminobenzoic acid or p-aminobenzoic acid) in an ointment base is a typical example of anti-sunburn creams sold in the United States between the 1940s and early 1960s. ⁠ ⁠ 🧴Take a closer look with the link in bio!⁠
...ugins/instagram-feed/img/placeholder.pngAnyone with a Netflix subscription by now has seen a trailer for Apple Cider Vinegar, the story of two wellness influencers who navigate the world of alternative cancer therapy. ⁠ ⁠ The show is, in part, a thinly veiled retelling of the experiences of Australian writer Jessica Ainscough who, when faced with a difficult cancer diagnosis, turned to Gerson therapy, which claims to cure cancer and other diseases via a vegan, juice-forward diet and regular coffee enemas. ⁠ ⁠ The Gerson regimen is just one example in a long line of cancer quackery. ⁠ ⁠ Check out our latest Distillations article, as historian Agnes Arnold-Forster explores why cancer seems especially rife with dodgy cures. Is there something about the disease or its history that makes it susceptible to scientific skepticism?⁠ ⁠ 💊 Tap the link in bio to read now.
...ugins/instagram-feed/img/placeholder.pngThis WEDNESDAY! Join us for a live performance by Charming Disaster at the Science History Institute! 🌟🎤🎸 ✨️⁠ ⁠ @charmingdisasterband’s newest album, The Double, explores the world that exists behind the one we know, featuring songs inspired by nature, mortality, magic, ritual, and literary genres ranging from science fiction to Victorian horror.⁠ ⁠ Through darkly whimsical songs about time travel, transformation, and the power of ritual, @charmingdisasterband celebrates the strange beauty of the natural world hidden world just beyond our perception—from the familiar trees in your backyard to the fantastical forests of imagination.⁠ ⁠ Before the show, stop by our museum and take a glimpse into our historical botanical crafts and collections. Stay afterward for light refreshments and a reception with the artists. And don't forget to grab a copy of The Double, which is on sale for a limited time in our gift shop!⁠ ⁠ 🎟️Tap the link in bio to grab your tickets now!!
...ugins/instagram-feed/img/placeholder.png☀️ School may be out for the summer, but it's still lunchtime at the Science History Institute!⁠ ⁠ Join us tomorrow at 2pm for a School Lunch Tour featuring our current exhibition, Lunchtime: The History of Science on the School Food Tray! 🍽️⁠ ⁠ Learn about the complicated relationship between food scientists, the government, and the public throughout the last 200 years as ideas about nutrition and education have evolved.⁠ ⁠ Does school lunch affect student performance? How did innovations in agricultural science lead to the national school lunch program? What challenges do school lunch advocates face today? And why do we have guinea pigs to thank for our understanding of basic nutrition? We will answer all these questions and more!⁠ ⁠ You’ll also have the chance to touch 🤚specially chosen artifacts from our handling collection, examine them in detail, and draw connections between your own experiences of school lunch and this fascinating facet of food history.⁠ ⁠ Drop-in tours are free, and no reservations are necessary! ⁠ ⁠ 🥪 Tap the 🔗 in bio to learn more. ⁠ ⁠
...ugins/instagram-feed/img/placeholder.png"Cancer is like this branch of the family tree that keeps branching out...."⁠ —Rosemary Cordova, who was five months old at the time of the Trinity test.⁠ ⁠ Today, July 16, marks the 80th anniversary of the Trinity Test, where one of the world's most devastating weapons was detonated in a New Mexican desert, unbeknownst to its many Indigenous and Hispanic residents. ⁠ ⁠ Not only were they not informed of the nuclear bomb test, but they were also unaware of the deadly, long-lasting health effects their families would face due to the radioactive fallout from the blast. Since then, the Trinity downwinders have been fighting for government recognition of radiation-related illnesses that have plagued their families, and after nearly a century, reparations may finally come.⁠ ⁠ The Radiation Exposure Compensation Act (RECA), initially enacted in 1990, was reauthorized on July 3, and will increase the number of Americans eligible for compensation for the harm caused by radiation exposure from atomic weapons.⁠ ⁠ According to Source New Mexico, “advocates and New Mexico officials say while RECA’s passage is worthy of celebration, more remains to be done.”⁠ ⁠ The Distillations article "In the Shadow of Oppenheimer" chronicles the intergenerational experiences of the neglected New Mexican communities that lived in the fallout of the first atomic bomb test. This story was written by Joshua Wheeler @jgwheel and photography provided by Reto Sterchi @retosterchi. ⁠ ⁠ Tap the link in bio to read today. ⁠ ⁠ For further information about the @trinity_downwinders stories and to find ways to help their cause, visit www.trinitydownwinders.com.⁠ ⁠ ⁠
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...oads/2024/04/Facebook_Logo_Secondary.pngFacebook logo
/wp-content/uploads/2024/04/logo-white.pngX logo
...t/uploads/2024/04/YouTube_light_icon.svgNo alt attribute provided

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.

Heading structure

Heading levelContent
H2 History Is a Piece of Cake
H2 First Friday: Gene-ius Quizzo
H2 Lunchtime: The History of Science on the School Food Tray
H2 Science History Institute Welcomes 2025–2026 Beckman Center Fellows
H2 Featured
H2 Collect. Preserve. Interpret. Share.
H2 Republish
H3 We tell the stories behind the science.
H3 Gerson’s Magic Bullet
H3 Fats, Butter, Beef, and Lard
H3 Paul de Kruif
H3 The History of the School Lunch
H3 ‘Mr. Polaroid’ Movie Night
H3 Hours & Admission
H3 Museum
H3 Library
H3 Stories
H3 Education
H3 Collections
H3 Research
H3 scihistoryorg
Some anchor texts are used more than once.
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 14 external links on this page.
LinkAttributesAnchor text
/aboutSubdomain About
/stories/magazineSubdomain Magazine
/storiesSubdomain Anchor Podcasts
/visit/eventsSubdomain Events
/visit/hours-admissionMuseum Hours:
https://www.sciencehistory.org/Subdomain No Text
/visit/Subdomain Visit
/visit/hours-admission/Subdomain Hours & Admission
/visit/exhibitionsSubdomain Exhibitions
/visit/eventsSubdomain Text duplicate Events
/visit/conferences-symposia/Subdomain Conferences & Symposia
/visit/group-school-tours/Subdomain Group & School Tours
/visit/getting-here/Subdomain Getting Here
/visit/accessibility/Subdomain Accessibility
/visit/health-safety/Subdomain Health & Safety
/collections/Subdomain Collections
https://digital.sciencehistory...New window External Subdomain Digital Collections
/collections/about-our-collect...Subdomain About Our Collections
/collections/search-our-collec...Subdomain Search Our Collections
/collections/blogCollections Blog
/stories/Subdomain Stories
/stories/magazineSubdomain Distillations Magazine
/stories/distillations-podSubdomain Distillations Podcast
/stories/disappearing-podSubdomain The Disappearing Spoon Podcast
/stories/stories-by-topic/Subdomain Stories by Topic
/research/Subdomain Research
/research/othmer-library/Subdomain Othmer Library
/research/othmer-library/sched...Subdomain Schedule a Library Visit
https://othmerlib.sciencehisto...New window External Subdomain Online Catalog
/research/rights-and-reproduct...Subdomain Rights & Reproductions
/research/research-centers/Subdomain Research Centers
/research/fellowships/Subdomain Fellowships
/education/Subdomain Education
/education/tours-trainings/Subdomain Tours & Trainings
/education/classroom-activities/Subdomain Classroom Activities
/education/educational-resources/Subdomain Educational Resources
/education/scientific-biographiesScientific Biographies
/support/Subdomain Support
/aboutSubdomain Text duplicate About
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/storiesSubdomain Anchor Text duplicate Podcasts
/visit/eventsSubdomain Text duplicate Events
/collections/blog/history-is-a...Subdomain Read
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/visit/exhibitions/lunchtime/Subdomain Text duplicate Learn More
/about/news/science-history-in...Subdomain Text duplicate Learn More
/about/About Us
/stories/magazine/gersons-magi...Subdomain DISTILLATIONS MAGAZINE Gerson’s Magic Bullet
IMG-ALT Newspaper photo clipping of a woman seated at a table selling book with a sign titled “Gerson Therapy” above
/visit/exhibitions/fats-butter...Subdomain EXHIBITIONS Fats, Butter, Beef, and Lard
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/education/scientific-biograph...Subdomain SCIENTIFIC BIOGRAPHIES Paul de Kruif
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/stories/distillations-pod/the...Subdomain DISTILLATIONS PODCAST The History of the School Lunch
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/visit/events/mr-polaroid-movi...Subdomain EVENTS ‘Mr. Polaroid’ Movie Night
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/visit/hours-admission/Subdomain VISIT Hours & Admission
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IMG-ALT teacher at chalkboard
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IMG-ALT stuffed mechanical teddy bear
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IMG-ALT A Beckman Center fellow conducts research in the Othmer Library.
https://www.instagram.com/scih...New window Nofollow External Subdomain scihistoryorg
A-TITLE @scihistoryorg
https://www.instagram.com/p/DM...New window Nofollow External Subdomain 💥BOOM! BANG! POW!💥 It's First Friday: Gene-i
IMG-ALT 💥BOOM! BANG! POW!💥 It's First Friday: Gene-ius Quizzo!⁠ ⁠ 🦕 Are you a Jurassic Park superfan? Think you know your genetically modified villains and heroes? N...
https://www.instagram.com/p/DM...New window Nofollow External Subdomain ☀️ Make sure you're wearing sunscreen every da
IMG-ALT ☀️ Make sure you're wearing sunscreen every day!⁠ ⁠ ⁠ Pictured here: RAY-NOX Sun Protectant. This early sunscreen, 10-15% PABA (para-aminobenzoic acid or p-a...
https://www.instagram.com/p/DM...New window Nofollow External Subdomain Anyone with a Netflix subscription by now has seen
IMG-ALT Anyone with a Netflix subscription by now has seen a trailer for Apple Cider Vinegar, the story of two wellness influencers who navigate the world of alterna...
https://www.instagram.com/p/DM...New window Nofollow External Subdomain This WEDNESDAY! Join us for a live performance by
IMG-ALT This WEDNESDAY! Join us for a live performance by Charming Disaster at the Science History Institute! 🌟🎤🎸 ✨️⁠ ⁠ @charmingdisasterband’s newest album, The Dou...
https://www.instagram.com/p/DM...New window Nofollow External Subdomain ☀️ School may be out for the summer, but it's
IMG-ALT ☀️ School may be out for the summer, but it's still lunchtime at the Science History Institute!⁠ ⁠ Join us tomorrow at 2pm for a School Lunch Tour featuring ...
https://www.instagram.com/p/DM...New window Nofollow External Subdomain "Cancer is like this branch of the family tree tha
IMG-ALT "Cancer is like this branch of the family tree that keeps branching out...."⁠ —Rosemary Cordova, who was five months old at the time of the Trinity test.⁠ ⁠ ...
https://www.instagram.com/scih...New window Nofollow External Subdomain FOLLOW US
https://www.sciencehistory.org/Subdomain No Text
/aboutText duplicate About
/about/leadership/Subdomain Leadership
/about/staff-fellows/Subdomain Staff & Fellows
/about/projects-initiatives/Subdomain Projects & Initiatives
/about/awards-programAwards Program
/about/news/Subdomain News
/about/press/Subdomain Pressroom
/about/join-our-teamCareers
/visit/hours-admissionMUSEUM HOURS
/exhibitionsSee an Exhibition
/research/othmer-library/sched...Subdomain Text duplicate Schedule a Library Visit
/conference-centerHost An Event
/about/contact-us/Subdomain Contact Us
/support/Subdomain Support Us
https://www.instagram.com/scih...New window External Subdomain No Text
https://facebook.com/scihistor...New window External IMG-ALT Facebook logo
https://twitter.com/scihistoryorgNew window External IMG-ALT X logo
https://www.youtube.com/c/Scie...New window External Subdomain No Text
/privacy-policy/Subdomain Privacy Policy
/terms-of-useTerms of Use
/visit/accessibility/Subdomain Text duplicate Accessibility
/republication-guidelinesSubdomain full list of guidelines

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.sciencehistory.org/"
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 0.09 seconds.
The file size of the HTML document is fine (174 kB).

HTTP Response Header

NameValue
content-encodinggzip
content-typetext/html; charset=UTF-8
link<https://www.sciencehistory.org/wp-json/>; rel="https://api.w.org/"
servernginx
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dateFri, 25 Jul 2025 04:30:37 GMT
x-served-bycache-chi-kigq8000174-CHI, cache-fra-eddf8230177-FRA
x-cacheHIT, HIT
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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 1,002 referring domains.
This page has 9,624 backlinks.
This page has backlinks from 800 different ip addresses.

Robots.txt

# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://www.sciencehistory.org/sitemap_index.xml
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Search preview

www.sciencehistory.org
Science History Institute
The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science.

Most important keywords

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

KeywordResultRecheck
science86%Check
Science History83%Check
History81%Check
Science History Institute78%Check
Stories63%Check
Institute63%Check
Library54%Check
ORG54%Check
Museum52%Check
Join us49%Check

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