Naturalhistory.si.edu - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
53% 
Page structure
95% 
Link structure
92% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.15 s
File size
24.20 kB
Words
378
Media files
13
Number of links
29 internal / 14 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Homepage | Smithsonian National Museum of Natural History
The length of the page title is perfect. (549 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://naturalhistory.si.edu/
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 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)
The favicon is linked correctly.

Meta tags

NameValue
facebook-domain-verification221909752997526
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
p:domain_verify812f0d1487ffea55de2cf30cc4345d75
langen
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
Words from the H1 heading are not used in the page content.
There are only 378 words on this page. Good pages should have about 800 words of useful content.
30.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 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 12.75 words is good.
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)
Some tags are too long. With 81 characters this one is longer than 70 characters:
"we're on the national mall 10th st. & constitution ave. nw washington, d.c. 20560"
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
...ault/files/media/image/si-logo-white.pngSmithsonian Logo white
...141026resizedcrop.jpg.webp?itok=LjVpBN7jA family looks out over Henry the elephant in the rotunda of the museum.
...0401-webcutout-01.png.webp?itok=dprPU0TpRed diamond gem on a black background
...abaktafreshi-twan.jpg.webp?itok=JWAqLGm4a bright halo of stars over a dark landscape
...nes-halloutlined6.png.webp?itok=Bewlq3qgan image of a cellphone taking a picture of a cellphone photo of two women wearing masks
...ge/nhb2017-000221.jpg.webp?itok=smgCReYrA fossilized T. rex biting a triceratops
...0603-webcutout-01.png.webp?itok=lGwC7a00Color illustration of four dinosaurs -- including a T. rex and a winged dinosaur with feathers -- on a rocky outcrop overlooking a green, wooded valley.
...308502resizedcrop.jpg.webp?itok=2SAJWp1VTwo children put their hands on a mural at the Museum.
...0828-webcutout-01.png.webp?itok=JH0NAgBFA teenage boy sitting at a table with a pen in his hand. He is touching his chin with one finger, as if he is thinking.
...nh1807141339small.jpg.webp?itok=AIqhlqifTwo children explore collections items in the Museum.
...paleobiology-hero.jpg.webp?itok=jeHjb7PwExplore the World of Paleobiology
...nh1806185603small.jpg.webp?itok=ENF4SOMIA view of the gems and minerals exhibits.
/sites/default/files/media/image/girl.pngCome enjoy the wonder of Natural History

Page structure

H1 heading
(Critically important)
Discover the Natural World
The H1 heading is perfect.
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Discover the Natural World
H2 Main Menu
H2 Search
H2 The Winston Red Diamond
H2 Featured Exhibitions
H2 Film & Discussion: 'Walking with Dinosaurs'
H2 Today's Events
H2 School Programs
H2 Empty heading
H3 Lights Out: Recovering Our Night Sky
H3 Cellphone: Unseen Connections
H3 David H. Koch Hall of Fossils - Deep Time
H3 Understanding the Natural World and Our Place In It
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.
The number of internal links is ok.
None of the anchor texts is too long.
There are 14 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://naturalhistory.si.edu/Anchor Skip to main content
https://si.edu/External Smithsonian Institution
IMG-ALT Smithsonian Logo white
A-TITLE Smithsonian
/visitVisit
A-TITLE Visit
/exhibitsExhibits
/researchResearch
/educationEducation
/eventsEvents
/aboutAbout
/join-usJoin us
/join-us/memberships-giving/wa...Donate
https://naturalhistory.si.edu/Smithsonian National Museum of Natural History
/visitPlan your visit
A-TITLE Plan your visit
/explore/collections/winston-r...Learn More
/exhibits/lights-outSecond floor | Temporary Exhibit Lights Out: Recovering Our Night Sky
IMG-ALT a bright halo of stars over a dark landscape
A-TITLE Lights Out: Recovering Our Night Sky
/exhibits/cellphone-unseen-con...Second floor | Special Exhibit Cellphone: Unseen Connections
IMG-ALT an image of a cellphone taking a picture of a cellphone photo of two women wearing masks
A-TITLE Cellphone: Unseen Connections
/exhibits/david-h-koch-hall-fo...FIRST FLOOR | EXHIBIT David H. Koch Hall of Fossils - Deep Time
IMG-ALT A fossilized T. rex biting a triceratops
A-TITLE David H. Koch Hall of Fossils - Deep Time
/events/natural-history-big-sc...Learn More and Register
/eventsView more events
A-TITLE View more events
/events/play-date-nmnh-birdsPlay Date at NMNH: Birds!
A-TITLE Play Date at NMNH: Birds!
/events/ocean-topics-cart-chat-1Ocean Topics Cart Chat
A-TITLE Ocean Topics Cart Chat
/education/school-programsText duplicate Learn More and Register
/education-0Text duplicate Education
IMG-ALT Two children explore collections items in the Museum.
/researchResearch & Collections
IMG-ALT Explore the World of Paleobiology
/exhibitsText duplicate Exhibits
IMG-ALT A view of the gems and minerals exhibits.
https://support.si.edu/site/Do...External Subdomain Text duplicate Donate
https://www.instagram.com/smit...New window External Subdomain Follow Us
A-TITLE Follow us on Instagram
https://naturalhistory.si.edu/Text duplicate Smithsonian National Museum of Natural History
https://www.si.edu/External Subdomain Smithsonian
A-TITLE Smithsonian
https://www.blackbaud.com/priv...New window External Subdomain Privacy Policy
https://www.blackbaud.com/term...New window External Subdomain Terms of Use
https://www.facebook.com/Smith...External Subdomain Facebook
https://twitter.com/NMNHExternal Twitter
https://www.instagram.com/smit...External Subdomain Instagram
https://support.si.edu/site/Do...External Subdomain Text duplicate Donate
https://naturalhistory.si.edu/Home
https://www.si.edu/External Subdomain Text duplicate Smithsonian Institution
https://www.si.edu/termsofuseExternal Subdomain Text duplicate Terms of Use
https://www.si.edu/privacyExternal Subdomain Text duplicate Privacy Policy
/join-us/host-event-museumHost an Event
/join-us/job-opportunitiesJobs
/about/press-officePress
A-TITLE NMNH Press Office landing page
https://www.smithsonianmag.com...External Subdomain Blog
/contact-usContact Us
A-TITLE Contact for the National Museum of Natural History and other important contact information

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://naturalhistory.si.edu/"
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 0.15 seconds.
The file size of the HTML document is fine (24 kB).

HTTP Response Header

NameValue
cache-controlmax-age=3600, public
cache-tagsuser:0 config:block.block.donatepopupeducation block_view config:block.block.emailsignup block_content:12 config:block_list config:block.block.gesso_messages config:block.block.main_menu config:block.block.gesso_page_title config:block.block.gesso_local_tasks config:block.block.gesso_branding block_content:6 config:block.block.news_media_inquiries config:block.block.nmnh_breadcrumbs config:facets.facet.resource_topics config:search_api.index.resource_index config:views.view.resource_listing search_api_list:resource_index config:block.block.resource_topics config:facets.facet.resource_type taxonomy_term_list config:block.block.resource_type config:facets.facet.resource_grade config:block.block.resource_grade config:facets.facet.resource_literacy config:block.block.resource_literacy config:facets.facet.resource_exhibit config:block.block.resource_exhibit block_content:9 config:block.block.searchresults config:facets.facet.highlights_type config:field.storage.node.field_date config:field.storage.node.field_department_division config:views.view.highlights_listing config:search_api.index.content search_api_list:content config:block.block.highlights_type config:facets.facet.highlights_topics config:block.block.highlights_topics config:facets.facet.highlights_exhibit config:block.block.highlights_exhibit config:facets.facet.highlights_department config:block.block.highlights_department config:facets.facet.news_exhibit config:views.view.newsroom_listing config:block.block.news_exhibit config:facets.facet.news_department config:block.block.news_department config:facets.facet.news_date config:block.block.news_date config:block.block.side_navigation_children config:block.block.side_navigation config:facets.facet.geo_acquired_date config:field.storage.node.field_emu_irn config:search_api.index.geogallery config:views.view.geogallery_listing search_api_list:geogallery config:block.block.geoacquireddate config:facets.facet.geogallery_locality config:block.block.geogallerylocality config:facets.facet.geogallery_geotype config:block.block.geogallerygeotype config:facets.facet.geogallery_exhibit_case config:block.block.geogalleryexhibitcase block_content:14 config:block.block.ossheaderblock config:facets.facet.geo_donor config:block.block.geodonor config:facets.facet.language config:block.block.resource_language config:block.block.nmnhedanadd config:block.block.edansearchblock config:facets.facet.event_type config:field.storage.node.field_event_location config:field.storage.node.field_start_date config:views.view.event_listing config:block.block.event_type config:facets.facet.event_series config:block.block.eventseries config:facets.facet.event_date config:block.block.event_date config:block.block.ossearchsimpleresults config:block.block.general_alert config:block.block.footer block_content:7 config:block.block.addthis config:block.block.social block_content:5 config:block.block.footer_content block_content:15 config:block.block.aamsurvey block_content:4 config:block.block.smithsonian_branding config:simple_popup_blocks.popup_home_page config:simple_popup_blocks.popup_internal_pages config:google_tag_container_list config:google_tag.container.nmnh_main config:system.menu.footer node:5357 node:14971 node:5353 node:2409 config:filter.format.full_html_admin config:system.menu.social config:system.site media:8075 media_view config:image.style.resource_side file:89921 config:filter.format.full_html node_view node:12391 paragraph_view paragraph:6618 config:paragraphs.settings paragraph:6617 config:filter.format.basic_html media:48 paragraph:6616 paragraph:6615 media:26 paragraph:6614 media:27 paragraph:6613 media:30 paragraph:10308 paragraph:10307 media:3787 paragraph:6612 config:views.view.event_highlights node_list node:16159 node:16172 user:1 media:24 paragraph:10422 paragraph:10421 media:9355 paragraph:6609 taxonomy_term_view taxonomy_term:166 media:1573 taxonomy_term:1425 media:7913 taxonomy_term:1428 media:8032 paragraph:10353 paragraph:10352 media:9272 paragraph:6606 paragraph:6604 config:filter.format.full_html_no_editor_admin_ media:15 user:134 config:system.menu.main node:21 node:10 node:30 taxonomy_term:173 node:110 node:3084 node:2141 node:2144 media:12 rendered http_response config:user.role.anonymous
content-encodinggzip
content-languageen
content-typetext/html; charset=UTF-8
etagW/"1748397376"
expiresSun, 19 Nov 1978 05:00:00 GMT
last-modifiedWed, 28 May 2025 01:56:16 GMT
servernginx
strict-transport-securitymax-age=300
x-content-type-optionsnosniff
x-drupal-cacheHIT
x-drupal-dynamic-cacheUNCACHEABLE (poor cacheability)
x-generatorDrupal 10 (https://www.drupal.org)
x-pantheon-styx-hostnamestyx-fe3-b-657bb69d44-m7f2t
x-styx-req-id3cc13ef0-3b67-11f0-bd29-dabe4717c090
age138
accept-rangesbytes
via1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-frame-optionsSAMEORIGIN
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x-served-bycache-chi-klot8100040-CHI, cache-fra-eddf8230096-FRA, cache-fra-eddf8230089-FRA, cache-fra-eddf8230089-FRA
x-cacheHIT, MISS, MISS, MISS
x-cache-hits6, 0, 0, 0
x-timerS1748397641.284035,VS0,VE109
varyAccept-Encoding, Cookie, Cookie, Cookie
content-length8436
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 2,246 referring domains.
This page has 150,103 backlinks.
This page has backlinks from 1,570 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

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Most important keywords

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

KeywordResultRecheck
Natural78%Check
Natural History71%Check
natural world66%Check
World56%Check
National51%Check
Discover50%Check
National Museum49%Check
Smithsonian National49%Check
Smithsonian National Museum49%Check
Smithsonian48%Check
Show more keywords and terms

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