Ndbc.noaa.gov - SEO Checker

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Overview of the SEO Check
Meta information
88% 
Page quality
70% 
Page structure
79% 
Link structure
21% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.19 s
File size
26.80 kB
Words
439
Media files
29
Number of links
69 internal / 28 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
National Data Buoy Center
The length of the page title is perfect. (242 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The National Data Buoy Center's home page. The premier source of meteorological and oceanographic measurements for the marine environment.
The length of the meta description is perfect. (908 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is 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)
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)
HTTP-Header Content-Type: iso-8859-1
Meta Charset Attribut: utf-8
The specified character encodings are different.
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=1.0
DC.titleNational Data Buoy Center
DC.descriptionThe National Data Buoy Center's home page. The premier source of meteorological and oceanographic measurements for the marine environment.
descriptionThe National Data Buoy Center's home page. The premier source of meteorological and oceanographic measurements for the marine environment.
DC.subjectweather, buoy, weather buoy, marine, forecast, hurricane, wind, wave, offshore, surfing, temperature, meteorology, climate, ocean
DC.creatorUS Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service, National Data Buoy Center
DC.languageEN-US
DC.formattext/html;charset=UTF-8
DC.date.created1996-11-08
langen
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 439 words on this page. Good pages should have about 800 words of useful content.
These Typos were found:
  • threshhold => threshold
17.3% 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.
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 22.14 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 9 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
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
/images/noaalogo001.pngNOAA Logo
/images/nwslogo000.pngNWS Logo
/images/ndbcheader.pngNational Data Buoy Center
/images/header_doc.pngUnited States Department of Commerce
/images/feed-icon-14x14.pngImage indicating link to RSS feed access page
https://www.ndbc.noaa.gov/images/f_logo.pngFollow the National Data Buoy Center on Facebook
/images/twitter.pngFollow the National Data Buoy Center on Twitter
/images/linkedin_logo.pngFollow the National Data Buoy Center on LinkedIn
/images/hurrsmall.jpgHurricane Symbol
/images/hlp/help.pngClick for helpClick for help
/images/maps/markers/tiny_active_marker.pngyellow diamond
.../maps/markers/tiny_historical_marker.pngorange diamond
...es/maps/markers/tiny_inactive_marker.pngred diamond
...ps/markers/tiny_tsunami_event_marker.gifblinking yellow diamond
/images/kml/kml_feed_small.pngKML Logo
/images/kml/kml_feed_small.pngKML Logo
/images/hlp/help.pngClick for help on KMLClick for help on KML
/images/maps/markers/hurricane_nhemi.pngHurricane Symbol
/images/maps/markers/ts_nhemi.pngTropical Storm Symbol
/images/maps/markers/td_nhemi.pngTropical Depression Symbol
/images/maps/nhc_kml_legend.pngHurricane KML legend
/images/facebook_logo.pngFacebook LogoNDBC on Facebook
/images/linkedin_logo.pngLinkedIn LogoNDBC on LinkedIn
/images/twitter.pngTwitter LogoNDBC on Twitter
/images/feed-icon-14x14.pngImage indicating link to RSS feed access page
https://www.ndbc.noaa.gov/images/f_logo.pngFollow the National Data Buoy Center on Facebook
/images/twitter.pngFollow the National Data Buoy Center on Twitter
/images/linkedin_logo.pngFollow the National Data Buoy Center on LinkedIn
/images/usa_gov.pngusa.gov

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
H3 Events in the last twenty-four hours
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 too many external links (28) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.ndbc.noaa.gov/Anchor Skip Navigation
https://www.noaa.gov/External Subdomain IMG-ALT NOAA Logo
https://www.weather.gov/External Subdomain IMG-ALT NWS Logo
https://www.ndbc.noaa.gov/IMG-ALT National Data Buoy Center
https://www.commerce.gov/External Subdomain IMG-ALT United States Department of Commerce
https://www.ndbc.noaa.gov/Home
/observations.shtmlObservations
/obs.shtmlAll Stations (Map)
/os.shtmlObservation Search
/histsearch.phpHistorical Observation Search
/ship_obs.phpShip Obs Report
/buoycams.shtmlBuoyCAMs
/faq/rss_access.shtmlRSS Feeds
IMG-ALT Image indicating link to RSS feed access page
/widgets/Web Widget
/information.shtmlInformation
https://tao.ndbc.noaa.gov/proj...External Subdomain TAO Program Info
/dart/dart.shtmlDART® Program Info
https://ioos.noaa.gov/External Subdomain IOOS® Program Info
https://vos.noaa.gov/External Subdomain Voluntary Observing Ship
/docs/ndbc_web_data_guide.pdfWeb Data Guide
/ops.shtmlMaintenance Schedule
/wstat.shtmlStation Status
/publications/Publications
/education.shtmlEducation
/education/Text duplicate Education
https://www.ndbc.noaa.gov/faq/Frequently Asked Questions
/news.shtmlNews
https://www.ndbc.noaa.gov/newsNews @ NDBC
/ndbcexit.php?url=https://www....NDBC on Facebook
IMG-ALT Follow the National Data Buoy Center on Facebook
/ndbcexit.php?url=https://www....NDBC on Twitter
IMG-ALT Follow the National Data Buoy Center on Twitter
/ndbcexit.php?url=https://www....NOAA on LinkedIn
IMG-ALT Follow the National Data Buoy Center on LinkedIn
/search.shtmlSearch
/about.shtmlAbout
/faq/ndbc.shtmlAbout Us
/visitorinfo.shtmlVisitor Information
/contact_us.shtmlContact Us
/to_station.shtmlStation List
A-TITLE View a list of available stations ordered by owner
/radial_search.php?storm=at2Atlantic Tropical Depression Gordon
/radial_search.php?storm=at3Atlantic Potential Tropical Cyclone Eight
https://www.weather.gov/discla...New window External Subdomain Anchor Disclaimer
/kml/marineobs_by_pgm.kmlGet Observations by Program as KML
/kml/marineobs_by_owner.kmlGet Observations by Owner as KML
https://www.nhc.noaa.gov/External Subdomain National Hurricane Center
https://www.nhc.noaa.gov/?cpacExternal Subdomain Central Pacific Hurricane Center
/station_page.php?station=4641...46415 Event triggered at 2024 Sep 15 22:33:30 UTC
/station_page.php?station=4641...46416 Event triggered at 2024 Sep 15 22:32:15 UTC
/station_page.php?station=4641...46419 Event triggered at 2024 Sep 15 22:24:45 UTC
/dart/dart.shtmlDART® Program Description
/dart/dart2_pc_1.shtmlDART® II Performance Characteristic/Specification Summary
/dart/dart2_pc_2.shtmlDART® Design Capability Test Procedures
/dart/chilean_tsunameter.shtmlChilean Tsunameter Project Information
/histsearch.phpSearch historical meteorological data for observations that meet your threshhold conditions
/ndbcexit.php?url=http://www.m...Canadian Moored Buoy Historical Data
/ndbcexit.php?url=http://www.m...Canadian Drifting Buoy Historical Data
/ndbcexit.php?url=https://www....Text duplicate NDBC on Facebook
IMG-ALT Facebook Logo
/ndbcexit.php?url=https://www....Text duplicate NOAA on LinkedIn
IMG-ALT LinkedIn Logo
/ndbcexit.php?url=https://www....Text duplicate NDBC on Twitter
IMG-ALT Twitter Logo
/obs.shtmlText duplicate All Stations (Map)
/os.shtmlText duplicate Observation Search
/histsearch.phpText duplicate Historical Observation Search
/ship_obs.phpText duplicate Ship Obs Report
/buoycams.shtmlText duplicate BuoyCAMs
/faq/rss_access.shtmlText duplicate RSS Feeds
IMG-ALT Image indicating link to RSS feed access page
/widgets/Text duplicate Web Widget
https://tao.ndbc.noaa.gov/proj...External Subdomain Text duplicate TAO Program Info
/dart/dart.shtmlText duplicate DART® Program Info
https://ioos.noaa.gov/External Subdomain Text duplicate IOOS® Program Info
https://vos.noaa.gov/External Subdomain Text duplicate Voluntary Observing Ship
/docs/ndbc_web_data_guide.pdfText duplicate Web Data Guide
/ops.shtmlStation Maintenance Schedule
/wstat.shtmlText duplicate Station Status
/publications/Text duplicate Publications
/educationText duplicate Education
https://www.ndbc.noaa.gov/newsText duplicate News @ NDBC
/ndbcexit.php?url=https://www....Text duplicate NDBC on Facebook
IMG-ALT Follow the National Data Buoy Center on Facebook
/ndbcexit.php?url=https://www....Text duplicate NDBC on Twitter
IMG-ALT Follow the National Data Buoy Center on Twitter
/ndbcexit.php?url=https://www....Text duplicate NOAA on LinkedIn
IMG-ALT Follow the National Data Buoy Center on LinkedIn
https://www.ndbc.noaa.gov/mobile/Low Bandwidth Website
https://dods.ndbc.noaa.gov/External Subdomain NDBC Data via NetCDF (THREDDS)
https://hfradar.ndbc.noaa.gov/External Subdomain Surface Currents via High Frequency Radar
https://dods.ndbc.noaa.gov/oce...External Subdomain OceanSITES
https://viz.pmel.noaa.gov/osmc/External Subdomain OSMC
/faq/ndbc.shtmlText duplicate About Us
/visitorinfo.shtmlText duplicate Visitor Information
/contact_us.shtmlText duplicate Contact Us
https://www.usa.gov/External Subdomain IMG-ALT usa.gov
https://www.commerce.gov/External Subdomain US Dept of Commerce
https://www.noaa.gov/External Subdomain National Oceanic and Atmospheric Administration
https://www.weather.gov/External Subdomain National Weather Service
https://www.weather.gov/discla...External Subdomain Text duplicate Disclaimer
https://www.cio.noaa.gov/servi...External Subdomain Information Quality
https://www.weather.gov/helpExternal Subdomain Help
https://www.weather.gov/glossaryExternal Subdomain Glossary
https://www.weather.gov/privacyExternal Subdomain Privacy Policy
https://www.noaa.gov/organizat...External Subdomain Freedom of Information Act (FOIA)
https://www.weather.gov/aboutExternal Subdomain Text duplicate About Us
https://www.weather.gov/careersExternal Subdomain Career Opportunities

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.ndbc.noaa.gov/"
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 0.19 seconds.
The file size of the HTML document is fine (27 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=ISO-8859-1
content-length6910
dateMon, 16 Sep 2024 19:34:54 GMT
serverApache
accept-rangesbytes
content-encodinggzip
x-content-type-optionsnosniff
x-xss-protection1; mode=block
x-frame-optionsdeny
content-security-policyframe-ancestors 'none'
cache-controlmax-age=300, must-revalidate
strict-transport-securitymax-age=31536000
varyAccept-Encoding
x-cacheMiss from cloudfront
via1.1 857b0dca772798c338c78a1be69c955c.cloudfront.net (CloudFront)
x-amz-cf-popFRA60-P1
x-amz-cf-idhMNZw2M9obxRVtbtUBIwb9bOZziDXs5UL047S8hCwno0fNU_l6f9vg==
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 7,235 referring domains.
This page has 1,266,572 backlinks.
This page has backlinks from 5,057 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# robots.txt file for https://www.ndbc.noaa.gov/
# e-mail [email protected] for problems

User-agent: 008
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: SemrushBot-SA
Disallow: /

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Search preview

www.ndbc.noaa.gov
National Data Buoy Center
The National Data Buoy Center's home page. The premier source of meteorological and oceanographic measurements for the marine environment.

Most important keywords

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

KeywordResultRecheck
Data59%Check
center59%Check
National59%Check
Buoy59%Check
National Data Buoy59%Check
National Data Buoy Center59%Check
Buoy Historical Data51%Check
NDBC50%Check
NOAA50%Check
Hurricane Center49%Check
Show more keywords and terms

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