Gml.noaa.gov - SEO Checker

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Overview of the SEO Check
Meta information
95% 
Page quality
88% 
Page structure
100% 
Link structure
87% 
Server
68% 
External factors
100% 
SEO Score
Response time
0.72 s
File size
32.90 kB
Words
550
Media files
22
Number of links
94 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
NOAA Global Monitoring Laboratory
The length of the page title is perfect. (319 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
GML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.
The length of the meta description is perfect. (946 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)
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1.0
authorGML Web Team
google-site-verificationUw6vHMCxBq921LJnURIx4fwUDt0DsjhZHWHFFAA8qMw
keywordsnoaa, national oceanic and atmospheric administration, earth system research, esrl, gml, gmd, climate, air quality, numerical modeling, global warming, climate change, ozone, co2, aerosols
descriptionGML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.
langen
og:descriptionGML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.
og:titleNOAA Global Monitoring Laboratory
og:typewebsite
og:urlhttps://gml.noaa.gov/index.html
og:imagehttps://gml.noaa.gov/images/noaalogo2.png
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
This page contains 550 words. That's ok.
19.1% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
9 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 16.2 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 6 JavaScript files. This may affect the load time negatively.
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 11 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/flags/smallflags/UNST0001.GIFU.S. Flag
/images/icon-dot-gov.svgicon dot gov
https://gml.noaa.gov/images/icon-https.svgicon https
https://gml.noaa.gov/images/noaa_small.webpnoaa logo
/main_img/brw_new_old.jpgBarrow, Alaska site
/main_img/grad_crested_butte.jpgGRAD team installing Radiation instruments at Crested Butte
/main_img/mlo_rainbow.jpgHawaiian rainbow over Mauna Loa
/main_img/table_mountain.jpgTable Mountain test facility
...rugiSunset.jpeg?h=4233ef75&itok=KLluiylSnews photo 0
/news/2025/lauder_water_vapor_launch.webpnews photo 1
...010825-NOAA.png?h=ea8bde7c&itok=4jknth2Znews photo 2
https://gml.noaa.gov/news/2025/ams2025.pngnews photo 3
/images/power-plant.webpgreenhouse gases
https://gml.noaa.gov/images/hats.webphats group
https://gml.noaa.gov/images/grad.webpgrad group
https://gml.noaa.gov/images/ozonehole.webpozone and water vapor
https://gml.noaa.gov/images/ct.jpgozone and water vapor
https://gml.noaa.gov/images/th_brw.jpg[Barrow]
https://gml.noaa.gov/images/th_mlo.jpg[Mauna Loa]
https://gml.noaa.gov/images/th_smo.jpg[American Samoa]
https://gml.noaa.gov/images/th_spo.jpg[South Pole]
/webdata/logos/noaa-emblem.webpNOAA logo with wording

Page structure

H1 heading
(Critically important)
Global Monitoring Laboratory
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Global Monitoring Laboratory
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 15 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://gml.noaa.gov/Anchor Skip to main content
https://gml.noaa.gov/Anchor Here's how you know
https://www.noaa.gov/External Subdomain IMG-ALT noaa logo
A-TITLE NOAA
https://gml.noaa.gov/Global Monitoring Laboratory
A-TITLE GML
https://gml.noaa.gov/Home
A-TITLE GML Home Page
/about/aboutgml.htmlAbout GML
https://gml.noaa.gov/review/Science Reviews
https://gml.noaa.gov/safety/Safety Program
/about/jobs.htmlEmployment
https://www.boulder.noaa.gov/o...External Subdomain Visiting
/about/contacts.htmlContact Us
https://sites.google.com/noaa....External Subdomain Intranet
/about/orgchart.htmlOrganization
/about/stafflist.htmlStaff
/about/employees.htmlEmployee Spotlight
/about/research.htmlResearch Overview
https://gml.noaa.gov/ccgg/Carbon Cycle Greenhouse Gases
https://gml.noaa.gov/hats/Greenhouse gases and Ozone-depleting Substances
https://gml.noaa.gov/ozwv/Ozone and Water Vapor
https://gml.noaa.gov/grad/Global Radiation, Aerosols and Clouds
/publications/Publications
https://gml.noaa.gov/ccl/WMO Central Calibration Laboratory
/grad/calfacil/Central UV Calibration Facility
/grad/srf.htmlBroadband Solar Calibration Facility
https://gml.noaa.gov/ozwv/dobson/World Dobson Ozone Calibration Centre
/about/networks.htmlObservations Overview
https://gml.noaa.gov/dv/site/Measurement Sites
/about/campaigns.htmlField Campaigns
https://gml.noaa.gov/obop/Observatory Operations
https://gml.noaa.gov/obop/brw/Barrow, Alaska
https://gml.noaa.gov/obop/mlo/Mauna Loa, Hawaii
https://gml.noaa.gov/obop/smo/American Samoa
https://gml.noaa.gov/obop/spo/South Pole
/ccgg/about.htmlGreenhouse Gas Reference Network
/hats/flask/flasks.htmlHalocarbons and Trace Gases
/grad/field.htmlSurface Radiation
https://gml.noaa.gov/aero/net/Federated Aerosol Network
/ozwv/network.phpOzone
https://gml.noaa.gov/ozwv/wvap/Water Vapor
https://gml.noaa.gov/data/Data & Products Portal
/data/data.phpData Finder
/ccgg/obspack/ObsPack Data Products
https://gml.noaa.gov/dv/site/Text duplicate Measurement Sites
/grad/solcalc/Solar Calculator
https://gml.noaa.gov/dv/iadv/Data Viewer
https://gml.noaa.gov/dv/spo_oz/South Pole Ozone Hole
/grad/mloapt.htmlMauna Loa Apparent Transmission
/grad/snomelt.htmlBarrow Snow Melt Dates
https://gml.noaa.gov/aggi/Greenhouse Gas Index
https://gml.noaa.gov/odgi/Ozone Depletion Index
https://gml.noaa.gov/ccgg/trends/Trends in CO2, CH4, N2O, SF6
/modeling.htmlModeling
https://gml.noaa.gov/news/News
/about/seminars.phpSeminars
https://gml.noaa.gov/education/Education/Outreach
https://gml.noaa.gov/interns/Student Opportunities
/education/faq_cat-1.htmlFAQ's
/publications/Text duplicate Publications
/obop/spo/livecamera.htmlSouth Pole Webcam
/obop/mlo/livecam/livecam.htmlMauna Loa Webcams
/obop/brw/livecamera.htmlBarrow Webcam
https://gml.noaa.gov/gmac/GMAC Conference
/about/research.htmlGreenhouse Gases and Carbon Cycle Feedbacks
/about/research.htmlChanges in Surface Radiation, Clouds, and Aerosols
/about/research.htmlRecovery of Stratospheric Ozone
/about/aboutgml.htmlRead More About GML >>
A-TITLE Read more about Global Monitoring Laboratory
https://gml.noaa.gov/bin/news.phpText duplicate News
/publications/browse.phpText duplicate Publications
/about/seminars.phpText duplicate Seminars
https://www.noaa.gov/news/phot...External Subdomain Photo feature: Last light at South Pole brings 6 months of darkness News
IMG-ALT news photo 0
/news/2025/gmls-20-year-water-...GML’s 20-year water vapor record at Lauder, New Zealand News
IMG-ALT news photo 1
https://www.noaa.gov/news-rele...External Subdomain Anchor Biden-Harris Administration, NOAA invest $15 million to help protect Western U.S. communities from wildfire News
IMG-ALT news photo 2
/news/2025/gml-highlights-at-t...GML highlights at the 2025 AMS annual meeting News
IMG-ALT news photo 3
https://gml.noaa.gov/bin/news.phpRead More >>
A-TITLE Read all news items about Global Monitoring Laboratory
https://gml.noaa.gov/ccgg/IMG-ALT greenhouse gases
https://gml.noaa.gov/ccgg/Text duplicate Carbon Cycle Greenhouse Gases
https://gml.noaa.gov/hats/IMG-ALT hats group
https://gml.noaa.gov/hats/Text duplicate Greenhouse gases and Ozone-depleting Substances
https://gml.noaa.gov/grad/IMG-ALT grad group
https://gml.noaa.gov/grad/Global Radiation and Aerosols
https://gml.noaa.gov/ozwv/IMG-ALT ozone and water vapor
https://gml.noaa.gov/ozwv/Text duplicate Ozone and Water Vapor
/modeling.htmlText duplicate IMG-ALT ozone and water vapor
/modeling.htmlText duplicate Modeling
https://gml.noaa.gov/obop/brw/Text duplicate Barrow, Alaska
IMG-ALT [Barrow]
https://gml.noaa.gov/obop/mlo/Text duplicate Mauna Loa, Hawaii
IMG-ALT [Mauna Loa]
https://gml.noaa.gov/obop/smo/Text duplicate American Samoa
IMG-ALT [American Samoa]
https://gml.noaa.gov/obop/spo/South Pole, Antarctica
IMG-ALT [South Pole]
/data/index.htmlData and Products
https://gml.noaa.gov/ccgg/trends/Current Trends
/grad/solcalc/Text duplicate Solar Calculator
https://gml.noaa.gov/ccl/Central Calibration Laboratory
https://gml.noaa.gov/education/Education
https://gml.noaa.gov/gmac/Annual Conference
https://gml.noaa.gov/Text duplicate Global Monitoring Laboratory
https://www.commerce.gov/External Subdomain U.S. Department of Commerce
https://www.noaa.gov/External Subdomain National Oceanic & Atmospheric Administration
https://research.noaa.gov/External Subdomain NOAA Research
https://www.noaa.gov/protectin...External Subdomain Privacy Policy
https://www.noaa.gov/accessibi...External Subdomain Accessibility
/about/disclaimer.htmlDisclaimer
https://www.noaa.gov/disclaimerExternal Subdomain Disclaimer for External Links
https://www.noaa.gov/informati...External Subdomain FOIA
https://www.usa.gov/External Subdomain Usa.gov
https://www.facebook.com/NOAAR...External Subdomain A-TITLE NOAA Research Facebook
https://instagram.com/noaarese...External A-TITLE NOAA Research Instagram
https://gml.noaa.gov/sitemap/Site Contents
/about/contacts.htmlText duplicate Contact Us
https://gml.noaa.gov/survey/Take Our Survey

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://gml.noaa.gov/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
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 of 0.72 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
This page loads 4 CSS files. This may affect the page load time negatively.
This page loads 6 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (33 kB).

HTTP Response Header

NameValue
dateTue, 27 May 2025 12:40:53 GMT
serverApache/2.4.62 (Red Hat Enterprise Linux) OpenSSL/3.2.2 mod_qos/11.74
x-frame-optionsSAMEORIGIN
strict-transport-securitymax-age=31536000; includeSubDomains; preload
accept-rangesbytes
varyAccept-Encoding
content-encodinggzip
access-control-allow-origin*
content-length8627
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 159 referring domains.
This page has 2,588 backlinks.
This page has backlinks from 154 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: petalbot
Disallow: /data/data.php

User-agent: *
Disallow: /webdata/
Disallow: /aftp/
Disallow: /grad/nuebrew/nuebrewdata/

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gml.noaa.gov
NOAA Global Monitoring Laboratory
GML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.

Most important keywords

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

KeywordResultRecheck
Global66%Check
Laboratory66%Check
Monitoring66%Check
Global Monitoring66%Check
Global Monitoring Laboratory66%Check
NOAA Global Monitoring Laboratory65%Check
NOAA61%Check
GML58%Check
Global Radiation57%Check
gov54%Check
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