Ocean.si.edu - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
80% 
Page quality
60% 
Page structure
29% 
Link structure
55% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.04 s
File size
194.80 kB
Words
408
Media files
27
Number of links
127 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Smithsonian Ocean | Smithsonian Ocean
There are word repetitions in the page title.
The length of the page title is perfect. (368 pixels out of 580 max pixel length)
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://ocean.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)
The specified alternate links have no errors.
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
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
x-ua-compatibleie=edge
charsetutf-8

Test up to 1.000 webpages of ocean.si.edu with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
There are only 408 words on this page. Good pages should have about 800 words of useful content.
21.3% of the text are stop words.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 21 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)
The usage of strong and bold tags is perfect. We recommend the use of up to 8 tags for this page.
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
data:[...] Base64Preview
data:[...] Base64In this painting, a giant squid engages in a struggle for survival with a sperm whale.
data:[...] Base64Preview
data:[...] Base64corals polyps open and spawning
data:[...] Base64Preview
data:[...] Base64a satellite up above the Earth
data:[...] Base64Preview
data:[...] Base64A hammerhead shark swims just underneath the surface of the water.
data:[...] Base64Preview
data:[...] Base64Two whales swimming
data:[...] Base64Preview
data:[...] Base64Two penguins on a rocky shore.
data:[...] Base64Preview
data:[...] Base64an ancient ocean seascape
data:[...] Base64Preview
data:[...] Base64A colorful coral reef in blue ocean water.
data:[...] Base64Preview
data:[...] Base64a sea turtle
data:[...] Base64Preview
data:[...] Base64An iridescent jellyfish underwater.
data:[...] Base64Preview
data:[...] Base64A satellite image of a hurricane.
...11/MegamouthPhoto.jpg.webp?itok=BqIhwWJOa megamouth shark swims with a diver in the background
...3-11/nielsen2HR_0.jpg.webp?itok=ZXG3TeWFGreenland Shark in cold water
...1176_877778633d_o.jpg.webp?itok=u77bC4bNan old illustration of an eel
data:[...] Base64Preview
data:[...] Base64A Pontoh pygmy seahorseA Pontoh pygmy seahorse

Page structure

H1 heading
(Critically important)
Smithsonian Ocean
Too many H1 headings
The H1 heading is too short (17 characters). It should be at least 20 Characters long.
Headings
(Important)
Some headings occur twice on the page.
There are 36 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Smithsonian Ocean
H1 Are You An Educator?
H2 Main Menu
H2 The Mystery of Ambergris
H2 Corals in Aquariums
H2 Observing the World’s Ocean from Space
H2 Quicklinks
H2 The Massive Filter Feeding Shark You Ought to Know
H2 In the Eyes of One Shark, Age is Nothing to Fear
H2 The Origin of Eels
H2 Explore Map
H2 Daily Catch
H2 Seahorse Colors
H2 Around the Web
H2 Dirty, Crevassed Glaciers in Alaska
H2 History and Seaports in Charleston
H2 Dry Season Fires in Australia
H2 The Eastern Caribbean Is Swamped by a Surge of Seaweed
H2 Roving Exhibit Highlights Ocean Plastics Problem
H2 Smithsonian Institution
H3 Sharks
H3 Whales
H3 Penguins
H3 Ocean Through Time
H3 Corals
H3 Sea Turtles
H3 Jellyfish & Comb Jellies
H3 Hurricanes Typhoons & Cyclones
H3 Ocean Leadership
H3 Ocean Leadership Duplicate text
H3 Ocean Leadership Duplicate text
H3 Ocean Leadership Duplicate text
H3 Ocean Leadership Duplicate text
H3 Explore
H3 Smithsonian National Museum of Natural History
H4 Search Smithsonian Ocean
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 19 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://ocean.si.edu/Anchor Skip to main content
https://naturalhistory.si.edu/External Subdomain Smithsonian Institution
A-TITLE Smithsonian Institution
https://www.facebook.com/Ocean...External Subdomain Follow us on Facebook
https://twitter.com/intent/fol...External Follow us on Twitter
https://www.flickr.com/groups/...External Subdomain Follow us on Flickr
https://oceanportal.tumblr.com/External Subdomain Follow us on Tumbr
https://support.si.edu/site/Do...External Subdomain Donate
https://ocean.si.edu/homeSmithsonian Ocean
A-TITLE Smithsonian Ocean
https://ocean.si.edu/ocean-lifeOcean Life
/ocean-life/marine-mammalsMarine Mammals
/ocean-life/sharks-raysSharks & Rays
/ocean-life/reptilesReptiles
/ocean-life/seabirdsSeabirds
/ocean-life/fishFish
/ocean-life/invertebratesInvertebrates
/ocean-life/planktonPlankton
/ocean-life/plants-algaePlants & Algae
/ocean-life/microbesMicrobes
https://ocean.si.edu/ecosystemsEcosystems
/ecosystems/coral-reefsCoral Reefs
/ecosystems/deep-seaDeep Sea
/ecosystems/coasts-shallow-waterCoasts & Shallow Water
/ecosystems/polesPoles
/ecosystems/census-marine-lifeCensus of Marine Life
https://ocean.si.edu/planet-oceanPlanet Ocean
/planet-ocean/tides-currentsTides & Currents
/planet-ocean/waves-storms-tsu...Waves, Storms & Tsunamis
/planet-ocean/seafloorThe Seafloor
/planet-ocean/temperature-chem...Temperature & Chemistry
https://ocean.si.edu/through-timeThrough Time
/through-time/ancient-seasAncient Seas
/through-time/extinctionsExtinctions
/through-time/evolutionEvolution
/through-time/anthropoceneThe Anthropocene
https://ocean.si.edu/conservationConservation
/conservation/fishingFishing
/conservation/pollutionPollution
/conservation/habitat-destructionHabitat Destruction
/conservation/invasive-speciesInvasive Species
/conservation/acidificationAcidification
/conservation/climate-changeClimate Change
/conservation/gulf-oil-spillGulf Oil Spill
/conservation/solutions-succes...Solutions & Success Stories
/conservation/get-involvedGet Involved
/human-connectionsHuman Connections
/human-connections/books-film-...Books, Film & The Arts
/human-connections/recreationRecreation
/human-connections/seafoodSeafood
/human-connections/explorationExploration
/human-connections/history-cul...History & Cultures
/human-connections/careersCareers
https://ocean.si.edu/museumAt The Museum
/educators-cornerEducators
https://ocean.si.edu/Anchor Menu
A-TITLE Menu
/ocean-life/marine-mammals/mys...The Mystery of Ambergris
IMG-ALT Preview
/ecosystems/coral-reefs/corals...Corals in Aquariums
IMG-ALT Preview
/conservation/climate-change/o...Observing the World’s Ocean from Space
IMG-ALT Preview
/ocean-life/sharks-rays/sharksSharks
IMG-ALT Preview
/ocean-life/marine-mammals/whalesWhales
IMG-ALT Preview
/ocean-life/seabirds/penguinsPenguins
IMG-ALT Preview
/through-time/ocean-through-timeOcean Through Time
IMG-ALT Preview
/ocean-life/invertebrates/cora...Corals
IMG-ALT Preview
/ocean-life/reptiles/sea-turtlesSea Turtles
IMG-ALT Preview
/ocean-life/invertebrates/jell...Jellyfish & Comb Jellies
IMG-ALT Preview
/planet-ocean/waves-storms-tsu...Hurricanes Typhoons & Cyclones
IMG-ALT Preview
/ocean-life/sharks-rays/massiv...IMG-ALT a megamouth shark swims with a diver in the background
/ocean-life/sharks-rays/massiv...The Massive Filter Feeding Shark You Ought to Know
/contributors/danielle-olsonDanielle Olson
/ocean-life/sharks-rays/eyes-o...IMG-ALT Greenland Shark in cold water
/ocean-life/sharks-rays/eyes-o...In the Eyes of One Shark, Age is Nothing to Fear
/contributors/danielle-olsonText duplicate Danielle Olson
/ocean-life/fish/origin-eelsIMG-ALT an old illustration of an eel
/ocean-life/fish/origin-eelsThe Origin of Eels
/contributors/danielle-olsonText duplicate Danielle Olson
/ocean-life/invertebrates/how-...Seahorse Colors
IMG-ALT Preview
https://earthobservatory.nasa....External Subdomain Dirty, Crevassed Glaciers in Alaska
https://earthobservatory.nasa....External Subdomain History and Seaports in Charleston
https://earthobservatory.nasa....External Subdomain Dry Season Fires in Australia
https://www.hakaimagazine.com/...External Subdomain The Eastern Caribbean Is Swamped by a Surge of Seaweed
http://oceanleadership.org/rov...External Roving Exhibit Highlights Ocean Plastics Problem
/educators-cornerSee Lesson Plans
https://si.edu/External Text duplicate Smithsonian Institution
A-TITLE Smithsonian Institution
https://ocean.si.edu/homeText duplicate Smithsonian Ocean
A-TITLE Smithsonian Ocean
https://www.facebook.com/Ocean...External Subdomain Text duplicate Follow us on Facebook
https://twitter.com/intent/fol...External Text duplicate Follow us on Twitter
https://www.flickr.com/groups/...External Subdomain Text duplicate Follow us on Flickr
https://oceanportal.tumblr.com/External Subdomain Text duplicate Follow us on Tumbr
https://ocean.si.edu/contactContact Us
https://ocean.si.edu/ocean-lifeText duplicate Ocean Life
https://ocean.si.edu/ecosystemsText duplicate Ecosystems
https://ocean.si.edu/planet-oceanText duplicate Planet Ocean
https://ocean.si.edu/through-timeText duplicate Through Time
https://ocean.si.edu/conservationText duplicate Conservation
/human-connectionsText duplicate Human Connections
https://ocean.si.edu/museumAt the Museum
/educators-cornerText duplicate Educators
/about-ocean-portalAbout
/search?search_api_fulltext&f[...Media Archive
https://www.si.edu/termsofuseExternal Subdomain Terms of Use
https://naturalhistory.si.edu/External Subdomain Smithsonian National Museum of Natural History
A-TITLE Smithsonian National Museum of Natural History
https://support.si.edu/site/Do...External Subdomain Text duplicate Donate
https://ocean.si.edu/ocean-lifeText duplicate Ocean Life
/ocean-life/marine-mammalsText duplicate Marine Mammals
/ocean-life/sharks-raysText duplicate Sharks & Rays
/ocean-life/reptilesText duplicate Reptiles
/ocean-life/seabirdsText duplicate Seabirds
/ocean-life/fishText duplicate Fish
/ocean-life/invertebratesText duplicate Invertebrates
/ocean-life/planktonText duplicate Plankton
/ocean-life/plants-algaeText duplicate Plants & Algae
/ocean-life/microbesText duplicate Microbes
https://ocean.si.edu/ecosystemsText duplicate Ecosystems
/ecosystems/coral-reefsText duplicate Coral Reefs
/ecosystems/deep-seaText duplicate Deep Sea
/ecosystems/coasts-shallow-waterText duplicate Coasts & Shallow Water
/ecosystems/polesText duplicate Poles
/ecosystems/census-marine-lifeText duplicate Census of Marine Life
https://ocean.si.edu/planet-oceanText duplicate Planet Ocean
/planet-ocean/tides-currentsText duplicate Tides & Currents
/planet-ocean/waves-storms-tsu...Text duplicate Waves, Storms & Tsunamis
/planet-ocean/seafloorText duplicate The Seafloor
/planet-ocean/temperature-chem...Text duplicate Temperature & Chemistry
https://ocean.si.edu/through-timeText duplicate Through Time
/through-time/ancient-seasText duplicate Ancient Seas
/through-time/extinctionsText duplicate Extinctions
/through-time/evolutionText duplicate Evolution
/through-time/anthropoceneText duplicate The Anthropocene
https://ocean.si.edu/conservationText duplicate Conservation
/conservation/fishingText duplicate Fishing
/conservation/pollutionText duplicate Pollution
/conservation/habitat-destructionText duplicate Habitat Destruction
/conservation/invasive-speciesText duplicate Invasive Species
/conservation/acidificationText duplicate Acidification
/conservation/climate-changeText duplicate Climate Change
/conservation/gulf-oil-spillText duplicate Gulf Oil Spill
/conservation/solutions-succes...Text duplicate Solutions & Success Stories
/conservation/get-involvedText duplicate Get Involved
/human-connectionsText duplicate Human Connections
/human-connections/books-film-...Text duplicate Books, Film & The Arts
/human-connections/recreationText duplicate Recreation
/human-connections/seafoodText duplicate Seafood
/human-connections/explorationText duplicate Exploration
/human-connections/history-cul...Text duplicate History & Cultures
/human-connections/careersText duplicate Careers
https://ocean.si.edu/museumText duplicate At The Museum
/educators-cornerText duplicate Educators

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://ocean.si.edu/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.04 seconds.
The file size of the HTML document is fine (195 kB).

HTTP Response Header

NameValue
cache-controlmax-age=3600, public
content-encodinggzip
content-languageen
content-typetext/html; charset=UTF-8
etagW/"1738275160"
expiresSun, 19 Nov 1978 05:00:00 GMT
last-modifiedThu, 30 Jan 2025 22:12:40 GMT
servernginx
strict-transport-securitymax-age=300
x-content-type-optionsnosniff
x-drupal-cacheHIT
x-drupal-dynamic-cacheUNCACHEABLE (poor cacheability)
x-frame-optionsSAMEORIGIN
x-generatorDrupal 10 (https://www.drupal.org)
x-pantheon-styx-hostnamestyx-fe3-b-94f64d6c7-w9s8n
x-styx-req-idba6f0b16-df5f-11ef-ad61-ca7298efabe1
dateFri, 31 Jan 2025 00:04:44 GMT
x-served-bycache-chi-klot8100168-CHI, cache-fra-eddf8230114-FRA
x-cacheHIT, HIT
x-cache-hits28, 0
x-timerS1738281884.495285,VS0,VE3
varyAccept-Encoding, Cookie, Cookie, Cookie
age3113
accept-rangesbytes
via1.1 varnish, 1.1 varnish
content-length66103
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 8,641 referring domains.
This page has 83,107 backlinks.
This page has backlinks from 4,975 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

Similar sites

Search preview

Most important keywords

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

KeywordResultRecheck
Ocean81%Check
Smithsonian Ocean76%Check
Smithsonian69%Check
Smithsonian Institution56%Check
Smithsonian National54%Check
Corals46%Check
Shark46%Check
History43%Check
Explore43%Check
Institution43%Check
Show more keywords and terms

Test up to 1.000 webpages of ocean.si.edu with our free plan!

Try For Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions