Nist.gov - SEO Checker

Overview of the SEO Check
Meta information
80% 
Page quality
94% 
Page structure
79% 
Link structure
90% 
Server
86% 
External factors
100% 
SEO Score
Response time
1.05 s
File size
90.30 kB
Words
688
Media files
20
Number of links
135 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
National Institute of Standards and Technology
The length of the page title is perfect. (415 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life
The meta description is too long: 1213 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.nist.gov/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Canada
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 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
descriptionNIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life
citation_titleNational Institute of Standards and Technology | NIST
dcterms.titleNational Institute of Standards and Technology
dcterms.subjectWorking with industry and science to advance innovation and improve quality of life.
dcterms.typetext
dcterms.formattext/html
dcterms.identifierhttps://www.nist.gov/national-institute-standards-and-technology
dcterms.sourceNIST
dcterms.modified2025-07-24T11:51-04:00
msvalidate.019802F04AC0DBFA09E639BA8F2E349685
google-site-verificationQMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
nist_search_modified2025-07-24T11:51:00-04:00
nist_search_bundlehomepage
langen
twitter:cardsummary_large_image
twitter:descriptionNIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life
twitter:siteNIST
twitter:titleNational Institute of Standards and Technology
twitter:imagehttps://www.nist.gov/themes/custom/nist_www/img/homepage/nist_mark.png
twitter:image:altNIST Logo
og:site_nameNIST
og:typewebsite
og:urlhttps://www.nist.gov/
og:titleNational Institute of Standards and Technology
og:descriptionNIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life
og:imagehttps://www.nist.gov/themes/custom/nist_www/img/homepage/nist_mark.png
og:image:width2048
og:image:height1152
og:image:altNIST Logo
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 688 words. That's ok.
23.5% 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.
7 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 11 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 14 tags for this page.
Image SEO
(Somewhat important)
2 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
...onent-library/dist/img/us_flag_small.pngU.S. flag
...ponent-library/dist/img/icon-dot-gov.svgNo alt attribute provided
...omponent-library/dist/img/icon-https.svgNo alt attribute provided
...ry/dist/img/logo/nist_logo_sidestack.svgNational Institute of Standards and Technology
.../dist/img/logo/NIST-Logo-Brand-White.svgNational Institute of Standards and Technology
.../dist/img/usa-icons-bg/search--white.svgSearch
..._www/img/homepage/chips_logo_mark.png?v1CHIPS.gov logo
..._1756010999.jpg?h=fee4874d&itok=RVLlPCjUClose-up photo of multicolored gummy bears lying on a surface with cannabis buds interspersed.
..._resized_5x.jpg?h=0740c477&itok=KFsy1toYAn image showing 22 pairs of numbered and color-coded chromosomes on a black background.
...25 topright.png?h=75d159d7&itok=3UtzR7fXMap of Puerto Rico has colored sections near the center with key: Landslides per km2
...C02700 copy.jpg?h=caf26d13&itok=2kvnF5pnFour researchers pose standing around a large piece of scientific equipment covered with wiring and electronics.
...14/DSC00230.JPG?h=a141e9ea&itok=QaekKmciA man wearing a yellow hardhat and fire-resistant jacket points to burnt frame of a window.
...lab_samples.jpg?h=cd9e8a72&itok=wuFKUK8KResearcher in safety glasses and gloves sits at a lab bench working with small test tubes.
...ard1_angled.jpg?h=790be497&itok=7yGC6IUqCircuit board with various square chips and gold screws. Small letters in the center say: NIST True Bq.
..._at_NZ-2387.jpg?h=ed34f166&itok=XvP3X9PJLisa Ng kneels, holding parts of a circular fan built into a room divider.
...g/homepage/wattbalance_1600_x_800.jpg?v1Photograph of the NIST-4 Kibble watt balance in blue light.
...age/nist_gaithersburg_campus_2400.jpg?v1Photograph of the NIST Gaithersburg Campus
.../dist/img/logo/NIST-Logo-Brand-White.svgNational Institute of Standards and Technology logo

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 Driving Innovation
H2 What we do
H2 CHIPS for America
H2 NIST in your State
H2 What’s new
H2 America’s national measurement institute
H2 NIST in your inbox
H3 NIST Makes First Detection of Cannabis in Breath From Edibles
H3 NIST Releases Trove of Genetic Data to Spur Cancer Research
H3 NIST Shares Preliminary Findings From Hurricane Maria Investigation
H3 NIST Ion Clock Sets New Record for Most Accurate Clock in the World
H3 NIST’s Alex Maranghides Receives Service to America Medal
H3 Measure Twice, Cut Once: How Measuring Molecular ‘Scissors’ Can Further Groundbreaking Research
H3 New NIST Method Precisely Measures Radioactivity in Tiny Samples
H3 Clearing the Air: How an Air Quality Researcher Takes Care of the Air Her Family Breathes
H3 HEADQUARTERS
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.
LinkAttributesAnchor text
https://www.nist.gov/Anchor Skip to main content
https://www.nist.gov/IMG-ALT National Institute of Standards and Technology
A-TITLE National Institute of Standards and Technology
https://www.nist.gov/careersCareers
https://shop.nist.gov/External Subdomain Shop
/about-nist/contact-usContact
https://www.nist.gov/publicationsPublications
https://www.nist.gov/topicsAll Topics
/advanced-communicationsAdvanced communications
/artificial-intelligenceArtificial intelligence
https://www.nist.gov/bioscienceBioscience
/buildings-constructionBuildings and construction
https://www.nist.gov/chemistryChemistry
/cybersecurityCybersecurity
https://www.nist.gov/electronicsElectronics
https://www.nist.gov/energyEnergy
https://www.nist.gov/environmentEnvironment
https://www.nist.gov/fireFire
/forensic-scienceForensic science
https://www.nist.gov/healthHealth
/information-technologyInformation technology
/infrastructureInfrastructure
/manufacturingManufacturing
https://www.nist.gov/materialsMaterials
/mathematics-statisticsMathematics and statistics
https://www.nist.gov/metrologyMetrology
/nanotechnologyNanotechnology
/neutron-researchNeutron research
/performance-excellencePerformance excellence
https://www.nist.gov/physicsPhysics
/public-safetyPublic safety
/quantum-information-scienceQuantum information science
https://www.nist.gov/resilienceResilience
https://www.nist.gov/standardsStandards
/transportationTransportation
https://www.nist.gov/adlpAssoc Director of Laboratory Programs
https://www.nist.gov/laboratoriesLaboratories
https://www.nist.gov/ctlCommunications Technology Laboratory
https://www.nist.gov/elEngineering Laboratory
https://www.nist.gov/itlInformation Technology Laboratory
https://www.nist.gov/mmlMaterial Measurement Laboratory
https://www.nist.gov/pmlPhysical Measurement Laboratory
/user-facilitiesUser Facilities
https://www.nist.gov/ncnrNIST Center for Neutron Research
https://www.nist.gov/cnstCNST NanoFab
/research-test-bedsResearch Test Beds
/laboratories/projects-programsResearch Projects
/laboratories/tools-instrumentsTools & Instruments
/major-programsMajor Programs
https://www.nist.gov/baldrigeBaldrige Performance Excellence Program
https://www.nist.gov/chipsCHIPS for America Initiative
https://www.nist.gov/mepManufacturing Extension Partnership (MEP)
https://www.nist.gov/oamOffice of Advanced Manufacturing
https://www.nist.gov/spoSpecial Programs Office
https://www.nist.gov/tpoTechnology Partnerships Office
/standards-measurementsMeasurements and Standards
https://www.nist.gov/calibrationsCalibration Services
https://www.nist.gov/nvlapLaboratory Accreditation (NVLAP)
/nist-quality-systemQuality System
https://www.nist.gov/srmStandard Reference Materials (SRMs)
https://www.nist.gov/sriStandard Reference Instruments (SRIs)
https://www.nist.gov/standardsgovStandards.gov
/pml/time-and-frequency-divisi...Time Services
https://www.nist.gov/pml/owmOffice of Weights and Measures
/services-resources/softwareSoftware
https://www.nist.gov/dataData
https://webbook.nist.gov/chemi...External Subdomain Chemistry WebBook
https://nvd.nist.gov/External Subdomain National Vulnerability Database
/pml/productsservices/physical...Physical Reference Data
https://www.nist.gov/srdStandard Reference Data (SRD)
https://shop.nist.gov/External Subdomain Storefront
https://www.nist.gov/tpoLicense & Patents
https://csrc.nist.gov/External Subdomain Computer Security Resource Center (CSRC)
/nist-research-libraryNIST Research Library
/news-events/newsNews
/news-events/eventsEvents
https://www.nist.gov/blogsBlogs
/feature-storiesFeature Stories
https://www.nist.gov/awardsAwards
/video-galleryVideo Gallery
/image-galleryImage Gallery
/pao/media-contactsMedia Contacts
https://www.nist.gov/about-nistAbout Us
/director/leadershipLeadership
/director/nist-organization-st...Organization Structure
/about-nist/budget-planningBudget & Planning
/about-nist/contact-usContact Us
/about-nist/visitVisit
https://www.nist.gov/careersText duplicate Careers
/iaao/academic-affairs-officeStudent programs
/about-nist/work-nistWork with NIST
https://www.nist.gov/historyHistory
http://nistdigitalarchives.con...External Subdomain NIST Digital Archives
https://www.nist.gov/nist-museumNIST Museum
/nist-and-nobelNIST and the Nobel
https://www.nist.gov/educationEducational Resources
/artificial-intelligenceArtificial Intelligence
https://www.nist.gov/bioscienceText duplicate Bioscience
/cybersecurityText duplicate Cybersecurity
https://www.nist.gov/energyText duplicate Energy
/manufacturingText duplicate Manufacturing
/advanced-communicationsNext-Gen Communications
/quantum-information-scienceQuantum Science
https://www.nist.gov/standardsText duplicate Standards
https://www.nist.gov/topicsSee more topics
https://www.nist.gov/chipsCHIPS for America
A-TITLE Learn more at chips.gov
https://www.nist.gov/chipsIMG-ALT CHIPS.gov logo
A-TITLE Learn more at chips.gov
https://www.nist.gov/chipsLearn more
A-TITLE Learn more at chips.gov
https://www.nist.gov/statesNIST in your State
https://www.nist.gov/statesText duplicate Learn more
/news-events/news/2025/07/nist...NIST Makes First Detection of Cannabis in Breath From Edibles
IMG-ALT Close-up photo of multicolored gummy bears lying on a surface with cannabis buds interspersed.
A-TITLE Go to NIST Makes First Detection of Cannabis in Breath From Edibles
/news-events/news/2025/07/nist...NIST Releases Trove of Genetic Data to Spur Cancer Research
IMG-ALT An image showing 22 pairs of numbered and color-coded chromosomes on a black background.
A-TITLE Go to NIST Releases Trove of Genetic Data to Spur Cancer Research
/news-events/news/2025/07/nist...NIST Shares Preliminary Findings From Hurricane Maria Investigation
IMG-ALT Map of Puerto Rico has colored sections near the center with key: Landslides per km2
A-TITLE Go to NIST Shares Preliminary Findings From Hurricane Maria Investigation
/news-events/news/2025/07/nist...NIST Ion Clock Sets New Record for Most Accurate Clock in the World
IMG-ALT Four researchers pose standing around a large piece of scientific equipment covered with wiring and electronics.
A-TITLE Go to NIST Ion Clock Sets New Record for Most Accurate Clock in the World
/news-events/news/2025/07/nist...IMG-ALT A man wearing a yellow hardhat and fire-resistant jacket points to burnt frame of a window.
/news-events/news/2025/07/nist...NIST’s Alex Maranghides Receives Service to America Medal
/blogs/taking-measure/measure-...IMG-ALT Researcher in safety glasses and gloves sits at a lab bench working with small test tubes.
/blogs/taking-measure/measure-...Measure Twice, Cut Once: How Measuring Molecular ‘Scissors’ Can Further Groundbreaking Research
/news-events/news/2025/07/new-...IMG-ALT Circuit board with various square chips and gold screws. Small letters in the center say: NIST True Bq.
/news-events/news/2025/07/new-...New NIST Method Precisely Measures Radioactivity in Tiny Samples
/blogs/taking-measure/clearing...IMG-ALT Lisa Ng kneels, holding parts of a circular fan built into a room divider.
/blogs/taking-measure/clearing...Clearing the Air: How an Air Quality Researcher Takes Care of the Air Her Family Breathes
/news-events/newsSee NIST News
https://www.nist.gov/nmiFAQ
/services-resources/standards-...Standards and Measurements
https://www.nist.gov/nist-workHow NIST’s Measurements Work for You
https://public.govdelivery.com...External Subdomain Sign Up
/webform/page_feedback?page=ht...Was this page helpful?
https://www.nist.gov/IMG-ALT National Institute of Standards and Technology logo
A-TITLE National Institute of Standards and Technology
/cdn-cgi/l/email-protectionWebmaster
/about-nist/contact-usSubdomain Text duplicate Contact Us
https://www.nist.gov/visitSubdomain Our Other Offices
https://x.com/NISTExternal X.com
https://www.facebook.com/NISTExternal Subdomain Facebook
https://www.linkedin.com/compa...External Subdomain LinkedIn
https://www.instagram.com/nist/External Subdomain Instagram
https://www.youtube.com/NISTExternal Subdomain YouTube
https://giphy.com/nistExternal Giphy
/news-events/nist-rss-feedsSubdomain RSS Feed
https://public.govdelivery.com...External Subdomain Mailing List
/form/nist-gov-feedback?destin...Nofollow Feedback
A-TITLE Provide feedback
/privacy-policySubdomain Site Privacy
/oism/accessibilitySubdomain Accessibility
https://www.nist.gov/privacySubdomain Privacy Program
/oism/copyrightsSubdomain Copyrights
https://www.commerce.gov/vulne...External Subdomain Vulnerability Disclosure
/no-fear-act-policySubdomain No Fear Act Policy
/office-director/freedom-infor...Subdomain FOIA
/environmental-policy-statementSubdomain Environmental Policy
/summary-report-scientific-int...Subdomain Scientific Integrity
/nist-information-quality-stan...Subdomain Information Quality Standards
https://www.commerce.gov/External Subdomain Commerce.gov
http://www.science.gov/External Subdomain Science.gov
http://www.usa.gov/External Subdomain USA.gov
https://vote.gov/External Vote.gov

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.nist.gov/"
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 slow (1.05 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
The file size of the HTML document is fine (90 kB).

HTTP Response Header

NameValue
dateFri, 25 Jul 2025 15:53:10 GMT
content-typetext/html; charset=UTF-8
age28248
cache-controlmax-age=32400, public
content-languageen
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expiresSun, 19 Nov 1978 05:00:00 GMT
last-modifiedFri, 25 Jul 2025 04:56:30 GMT
strict-transport-securitymax-age=31536000
varyCookie,Accept-Encoding
viavarnish
x-ah-environmentprod
x-cacheHIT
x-cache-hits24303
x-content-type-optionsnosniff
x-drupal-cacheHIT
x-frame-optionsSAMEORIGIN
x-generatorDrupal 10 (https://www.drupal.org)
x-request-idv-b183e340-692d-11f0-a67b-47462d03fcf5
cf-cache-statusDYNAMIC
set-cookie274 Characters
server-timingcfCacheStatus;desc="DYNAMIC"
servercloudflare
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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 12,722 referring domains.
This page has 695,196 backlinks.
This page has backlinks from 7,664 different ip addresses.

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

# Noindex files
Disallow: /system/files/documents/noindex/
Disallow: /index.php/system/files/documents/noindex/

# Search
Disallow: /fusion-search
Disallow: /index.php/fusion-search
Disallow: /site-search
Disallow: /index.php/site-search
Disallow: /search
Disallow: /index.php/search

# Disallow facet links
Disallow: *?f%5B*
Disallow: *&f%5B*

# Sitemap
Sitemap: https://www.nist.gov/sitemap.xml

Search preview

www.nist.gov
National Institute of Standards and Technology
NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life

Most important keywords

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

KeywordResultRecheck
nist65%Check
Standards59%Check
technology58%Check
Quality Standards55%Check
gov54%Check
National52%Check
National Institute Standards51%Check
Quality50%Check
Measurement50%Check
Innovation50%Check

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