Visión general del análisis SEO
Metadatos
80% 
Calidad de la página
87% 
Estructura
79% 
Enlazado
90% 
Servidor
82% 
Factores externos
100% 
Puntuación SEO
Tiempo de carga
0,63 s
Tamaño HTML
92,30 kB
Palabras
688
Medios
20
Cantidad de enlaces
134 internos / 18 externos

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Metadatos

Título
(Extremadamente importante)
National Institute of Standards and Technology
La longitud del título es óptima (418 píxeles de una longitud máxima de 580 píxeles).
No se repite ninguna palabra en el título.
Meta descripción
(Extremadamente importante)
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
La meta descripción es demasiado larga: 1000 píxelesOptimizar la descripción.
Rastreabilidad
(Extremadamente importante)
No se detectan problemas para acceder al sitio web.
Redirección canónica
(Importante)
https://www.nist.gov/
La página tiene una redirección canónica correcta.
Idioma
(Poco importante)
Idioma reconocido automáticamente en el contenido: en
Idioma declarado en el código HTML: en
Ubicación geográfica del servidor: Estados Unidos de América
El idioma ha sido correctamente declarado en el código HTML: en.
Enlaces Alternate/Hreflang
(Poco importante)
No se ha encontrado ningún enlace alternativo (alternate) en esta página.
Otras Metaetiquetas
(Poco importante)
No se detecta ninguna metaetiqueta de paginación rel next en la página.
No se detecta ninguna metaetiqueta de paginación rel prev en la página.
Dominio
(Poco importante)
El dominio no es un subdominio.
La longitud del nombre del dominio es buena.
El dominio no contiene caracteres especiales.
URL de la página
(Poco importante)
No se detecta ningún parámetro dinámico en la URL.
No se detecta ningún ID de sesión en la URL.
La URL no contiene demasiados subdirectorios.
Codificación de caracteres
(Poco importante)
La codificación de caracteres (UTF-8) ha sido declarada correctamente.
Doctype
(Deseable)
La etiqueta doctype HTML 5 está configurada correctamente.
La declaración del doctype se ubica al inicio del código HTML.
Favicon
(Deseable)
El favicon está enlazado correctamente.

Metaetiquetas

NombreValor
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.modified2025-01-30T05:59-05:00
msvalidate.019802F04AC0DBFA09E639BA8F2E349685
google-site-verificationQMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA
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nist_search_modified2025-01-30T05:59:00-05:00
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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Calidad de la página

Contenido
(Extremadamente importante)
El número total de palabras en la página es bueno: 688 palabras.
Un 23.1% del contenido está constituido por palabras vacías.
Las palabras clave del título también se repiten en el texto del cuerpo.
La página contiene un listado, lo que indica una buena estructuración del contenido.
Se han encontrado 7 párrafos en esta página.
El contenido en formato texto de esta página es óptimo.
No se detecta ningún placeholder de texto ni imagen.
No se detecta contenido duplicado.
La cantidad media de palabras por frase es buena: 11 palabras.
Frames
(Extremadamente importante)
Esta página no utiliza ningún frameset.
Optimización para móviles
(Poco importante)
No se ha especificado ningún icono de Apple Touch.
Esta página carga 5 archivos JavaScript. Esto puede afectar negativamente a la velocidad de carga.
El valor de la etiqueta viewport es correcto: (width=device-width, initial-scale=1.0).
Etiquetas Bold y Strong
(Poco importante)
El uso de etiquetas de negritas en esta página es óptimo. Te recomendamos emplear hasta 14 etiquetas de negritas en una página.
Optimización de imágenes
(Poco importante)
No se detecta ninguna descripción del atributo ALT en 2 imágenes. El contenido de los atributos ALT también es evaluado como texto por los buscadores y es muy importante para la búsqueda de imágenes.
Redes Sociales
(Deseable)
Esta página apenas ofrece posibilidades de compartir el contenido en redes sociales. Con la integración de widgets puedes conseguir que tus contenidos se popularicen en redes.
Etiquetas markup adicionales
(Deseable)
No se detecta ninguna etiqueta markup (de Schema.org) adicional.
HTTPS
(Poco importante)
El sitio utiliza HTTPS para transferir datos de forma segura.
Todos los archivos incluidos se transfieren a través de HTTPS.

Lista de medios

URLAtributo ALTTítulo
...onent-library/dist/img/us_flag_small.pngU.S. flag
...ponent-library/dist/img/icon-dot-gov.svgCarece de atributo ALT
...omponent-library/dist/img/icon-https.svgCarece de atributo ALT
...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
...tion_012925.jpg?h=cd9e8a72&itok=X3gxOzZOFour men are protected by a net structure as they look away from the camera toward a drone flying in a large high-ceilinged room with street signs on the walls.
...d_mot_color.jpg?h=d67e29a9&itok=RyotdRRpView through a circular opening into a dark interior. A red dot floats in the darkness.
...elogger-400.png?h=c1d42ee8&itok=1RaPFCqAAlex Rodriguez with data logger
...03/_3DP6922.jpg?h=fee4874d&itok=mrYWL-hUA scientist wearing safety glasses stands in front of a monitor in her lab.
.../CHIPS-packaging-stamp.png?itok=U5xhc0tcPackaging CHIPS for America
...DP6973_Edit.png?h=ec68ab68&itok=13rzR328Researcher working in lab with safety glasses and gloves
...y_111824jpg.jpg?h=62fa76ac&itok=sAxgUYY_Briana Capistran wears safety glasses as she poses smiling in the lab with computers and other equipment in the background.
...e_from_nist.png?h=386e1dc4&itok=liyvcxj2This AAV vector is a bumpy sphere that looks like it's made up of tiny crumpled black and white tubes.
...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

Estructura de la página

Encabezado H1
(Extremadamente importante)
No se ha detectado ningún encabezado H1.
Encabezados
(Importante)
En la estructura de los encabezados H faltan uno o varios niveles.

Estructura de los encabezados

Jerarquía de encabezadosContenido
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 Drones in Disaster Zones: How Advanced 3D Mapping Technology Can Help First Responders Save Lives
H3 New Atom-Based Thermometer Measures Temperature More Accurately
H3 NIST Works For You
H3 NIST Database Can Help Increase Recycling of Textiles and Clothing
H3 U.S. Department of Commerce Announces $1.4 Billion in Final Awards to Support the Next Generation of U.S. Semiconductor Advanced Packaging
H3 NIST Develops Genetic Material for Validating H5N1 Bird Flu Diagnostic Tests
H3 Speeding Up the Wheels of Justice: How NIST Resources Can Help Crime Labs Work Faster
H3 Study Highlights Need for Standardized Measurement Methods in Gene Therapy
H3 HEADQUARTERS
Algunos textos ancla son demasiado largos.
Algunos textos ancla se repiten más de una vez en varios enlaces.
La cantidad de enlaces internos es adecuada.
Ningún enlace interno contiene parámetros dinámicos.
Hay 18 enlaces externos en esta página.
EnlacePropiedadesTexto ancla
https://www.nist.gov/Texto ancla 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://www.nist.gov/shopShop
/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
/labs-major-programs/research-...Research 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
/services-resources/standards-...Standards and Measurements
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...Externo Subdominio Chemistry WebBook
https://nvd.nist.gov/Externo Subdominio National Vulnerability Database
/pml/productsservices/physical...Physical Reference Data
https://www.nist.gov/srdStandard Reference Data (SRD)
https://shop.nist.gov/Externo Subdominio Storefront
https://www.nist.gov/tpoLicense & Patents
https://csrc.nist.gov/Externo Subdominio 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/careersTexto duplicado Careers
/iaao/academic-affairs-officeStudent programs
/about-nist/work-nistWork with NIST
https://www.nist.gov/historyHistory
http://nistdigitalarchives.con...Externo Subdominio 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
/cybersecurityTexto duplicado Cybersecurity
/manufacturingTexto duplicado Manufacturing
https://www.nist.gov/energyTexto duplicado Energy
/health-bioscienceHealth & Bioscience
/advanced-communicationsNext-Gen Communications
/quantum-information-scienceQuantum Science
https://www.nist.gov/standardsTexto duplicado 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/statesTexto duplicado Learn more
/blogs/taking-measure/drones-d...Drones in Disaster Zones: How Advanced 3D Mapping Technology Can Help First Responders Save Lives
IMG-ALT Four men are protected by a net structure as they look away from the camera toward a drone flying in a large high-ceilinged room with street signs on the wal...
A-TITLE Go to Drones in Disaster Zones: How Advanced 3D Mapping Technology Can Help First Responders Save Lives
/news-events/news/2025/01/new-...New Atom-Based Thermometer Measures Temperature More Accurately
IMG-ALT View through a circular opening into a dark interior. A red dot floats in the darkness.
A-TITLE Go to New Atom-Based Thermometer Measures Temperature More Accurately
/nist-works-youNIST Works For You
IMG-ALT Alex Rodriguez with data logger
A-TITLE Go to NIST Works For You
/news-events/news/2025/01/nist...NIST Database Can Help Increase Recycling of Textiles and Clothing
IMG-ALT A scientist wearing safety glasses stands in front of a monitor in her lab.
A-TITLE Go to NIST Database Can Help Increase Recycling of Textiles and Clothing
/news-events/news/2025/01/us-d...IMG-ALT Packaging CHIPS for America
/news-events/news/2025/01/us-d...U.S. Department of Commerce Announces $1.4 Billion in Final Awards to Support the Next Generation of U.S. Semiconductor Advanced Packaging
/news-events/news/2025/01/nist...IMG-ALT Researcher working in lab with safety glasses and gloves
/news-events/news/2025/01/nist...NIST Develops Genetic Material for Validating H5N1 Bird Flu Diagnostic Tests
/blogs/taking-measure/speeding...IMG-ALT Briana Capistran wears safety glasses as she poses smiling in the lab with computers and other equipment in the background.
/blogs/taking-measure/speeding...Speeding Up the Wheels of Justice: How NIST Resources Can Help Crime Labs Work Faster
/news-events/news/2025/01/stud...IMG-ALT This AAV vector is a bumpy sphere that looks like it's made up of tiny crumpled black and white tubes.
/news-events/news/2025/01/stud...Study Highlights Need for Standardized Measurement Methods in Gene Therapy
/news-events/newsSee NIST News
https://www.nist.gov/nmiFAQ
/services-resources/standards-...Texto duplicado Standards and Measurements
/nist-works-youHow NIST’s Measurements Work for You
https://public.govdelivery.com...Externo Subdominio Sign Up
https://www.nist.gov/IMG-ALT National Institute of Standards and Technology logo
A-TITLE National Institute of Standards and Technology
/about-nist/contact-usSubdominio Texto duplicado Contact Us
https://www.nist.gov/visitSubdominio Our Other Offices
https://x.com/NISTExterno X.com
https://www.facebook.com/NISTExterno Subdominio Facebook
https://www.linkedin.com/compa...Externo Subdominio LinkedIn
https://www.instagram.com/nist/Externo Subdominio Instagram
https://www.youtube.com/NISTExterno Subdominio YouTube
https://giphy.com/nistExterno Giphy
/news-events/nist-rss-feedsSubdominio RSS Feed
https://public.govdelivery.com...Externo Subdominio Mailing List
/form/nist-gov-feedback?destin...Nofollow Feedback
A-TITLE Provide feedback
/privacy-policySubdominio Site Privacy
/oism/accessibilitySubdominio Accessibility
https://www.nist.gov/privacySubdominio Privacy Program
/oism/copyrightsSubdominio Copyrights
https://www.commerce.gov/vulne...Externo Subdominio Vulnerability Disclosure
/no-fear-act-policySubdominio No Fear Act Policy
/office-director/freedom-infor...Subdominio FOIA
/environmental-policy-statementSubdominio Environmental Policy
/summary-report-scientific-int...Subdominio Scientific Integrity
/nist-information-quality-stan...Subdominio Information Quality Standards
https://www.commerce.gov/Externo Subdominio Commerce.gov
http://www.science.gov/Externo Subdominio Science.gov
http://www.usa.gov/Externo Subdominio USA.gov
https://vote.gov/Externo Vote.gov

Configuración del servidor

Redirecciones HTTP
(Extremadamente importante)
Esta página redirige a "https://www.nist.gov/".
Cabecera HTTP
(Importante)
La cabecera X-Powered-by no se envía en la cabecera de la página.
Esta página utiliza GZip para la transmisión de datos comprimidos.
Rendimiento
(Poco importante)
Con 0,63 segundos, el tiempo de respuesta de la página es superior al límite recomendado de 0,4 segundos. Un tiempo de respuesta elevado ralentiza innecesariamente el rastreo de los buscadores y propicia una mala experiencia de uso.
Esta página carga 4 archivos CSS, lo que puede afectar negativamente al tiempo total de carga.
Esta página carga 5 archivos JavaScript. Esto puede afectar negativamente a la velocidad de carga.
El tamaño HTML de la página es adecuado: 92 kB.

Cabecera HTTP

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Factores externos

Wikipedia enlaza esta página en sus fuentes.
Esta página recibe enlaces de calidad de otros sitios web.
Esta página recibe backlinks de 56.860 dominios de referencia.
Esta página recibe un total de 5.017.553 backlinks.
Esta página recibe backlinks de 33.304 direcciones IP distintas.

Robots.txt

#
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# 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!
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# 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
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# For more information about the robots.txt standard, see:
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Disallow: /search
Disallow: /index.php/search

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

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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

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