Анализ страницы https://www.nist.gov/srd
Основное Готовность: 75%
Домен
nist.gov
Домен второго уровня идеален для продвижения.
Отличный запоминающийся домен.
Ответ сервера
200 Успешный ответ
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Безопасность
Сайт безопасен
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Ssl-сертификат действителен до 15.09.2026 18:50:35.
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Поздравляем! Сайт не содержится в реестре РКН.
Кодировка
utf-8
Указана кодировка на странице utf-8.
Язык
en
Язык документа указан явно: en.
Скорость загрузки
~0,74сек
Скорость загрузки сайта 0,74сек оптимальна.
Объем документа
87Кб
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Структура html-документа корректна.
Ресурсы
Ресурсы: 11
Кол-во файлов ресурсов 11 много для одной страницы. Приемлемо до 10. Проведите оптимизацию файлов ресурсов!
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| Тип | Название | Значение |
|---|---|---|
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| js | /modules/contrib/google_tag/js/gtag.js?ti21ta | |
| js | /modules/contrib/google_tag/js/gtm.js?ti21ta | |
| js | /sites/default/files/js/js_5WbAeKWaHF5M7ZGOm0J4MoiuVLINg4UjWTVpVV4wxTc.js?scope=header&delta=3&language=en&theme=nist_www&include=eJxlj1FuxCAMRC9Ew5GsITjALuAUHLHHL022Utp-YPwGazzgUCHUNUrrFjcwDuuTJqvs9tbToxt-aU71aX07duTljSaIhMykCDbM8pcXPPD6LRZTU1fLnwcyRU4h6qWELA75Y-46MTI8tx-kLU0HL6NmgSdtM12q0w_X847AtDH779j2v3RNaeQyc4hkh0ZFvPWpw03n8zPnzBjjFqXvKPNUK247-gplM9ht0op934tPyBK-AOhChPo | |
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| js | https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496 |
Серверные заголовки
Кол-во: 22
Найдены серверные заголовки 22шт. Подробнее про серверные заголовки.
Показать полный список серверных заголовков
| Ключ | Значение |
|---|---|
| Date | Mon, 13 Jul 2026 07:30:23 GMT |
| Server-Timing | cfCacheStatus;desc="HIT" |
| Cache-Control | public, max-age=2764800 |
| Age | 15761 |
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| Content-Security-Policy | default-src 'self'; script-src 'self' *.nist.gov js-agent.newrelic.com bam.nr-data.net bam-cell.nr-data.net gov-bam.nr-data.net 'unsafe-inline' 'unsafe-eval' www.google-analytics.com *.googletagmanager.com platform.twitter.com https://player.vimeo.com static.cloudflareinsights.com https://challenges.cloudflare.com; style-src 'self' 'unsafe-inline' *.nist.gov fonts.googleapis.com *.typekit.net; img-src 'self' 'unsafe-inline' data: *.nist.gov *.google-analytics.com *.googletagmanager.com cdnsecakmi.kaltura.com nist-el-nfrlhrr.s3.amazonaws.com https://cdn.jsdelivr.net/npm/leaflet-fullscreen@1.0.2/dist/fullscreen@2x.png https://cdn.jsdelivr.net/npm/leaflet-fullscreen@1.0.2/dist/fullscreen.png api.mapbox.com syndication.twitter.com https://h5p.org https://i.vimeocdn.com; media-src 'self' nist-el-nfrlhrr.s3.amazonaws.com; frame-src 'self' tube.nist.gov sts.nist.gov sts2.nist.gov *.kaltura.com *.youtube.com *.arcgis.com https://platform.twitter.com/ https://player.vimeo.com https://vimeo.com/ https://time.gov/ login.nist.gov https://customer-ltx6ylk10sje63q6.cloudflarestream.com https://challenges.cloudflare.com; frame-ancestors 'self'; child-src 'self' blob: tube.nist.gov sts.nist.gov sts2.nist.gov *.kaltura.com *.youtube.com *.arcgis.com *.time.gov login.nist.gov; font-src 'self' *.nist.gov fonts.googleapis.com fonts.gstatic.com *.typekit.net data:; connect-src 'self' bam.nr-data.net bam-cell.nr-data.net gov-bam.nr-data.net *.google-analytics.com *.analytics.google.com *.googletagmanager.com; upgrade-insecure-requests |
| Server | cloudflare |
| Strict-Transport-Security | max-age=31536000 |
| Vary | Cookie |
| Via | varnish |
| x-ah-environment | prod |
| X-Cache | HIT |
| x-cache-hits | 1 |
| X-Content-Type-Options | nosniff |
| x-drupal-cache | HIT |
| X-Frame-Options | SAMEORIGIN |
| x-generator | Drupal 10 (https://www.drupal.org) |
| X-Request-ID | v-f40fd84a-7e67-11f1-b9c8-8f207eaa2bec |
| X-UA-Compatible | IE=edge |
| X-XSS-Protection | 1;mode=block |
| cf-cache-status | HIT |
| cf-ray | a1a69503a837bfa3-ATL |
CMS
Drupal
Сайт работает на CMS Drupal.
Веб-сервер
Cloudflare
Сайт работает на веб-сервере Cloudflare.
Мета-теги Готовность: 48%
Title
Standard Reference Data | NIST
Необходимо увеличить число символов в title (текущее значение: 30, оптимально: от 40 до 45)
Дублей словоформ в title не найдено.
Description
For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics..
Необходимо уменьшить число символов в description (текущее значение: 201, оптимально: от 120 до 130)
Канонический Url
https://www.nist.gov/srd
Канонический Url прописан корректно.
Robots
Ошибок нет
Meta-тег robots не указан. Страница свободна для индексации.
Адаптивность
width=device-width, initial-scale=1.0
Meta-тег viewport со значением-константой width=device-width задаёт ширину страницы в соответствии с размером экрана.
Meta-тег viewport со значением initial-scale=1.0 определяет масштаб 1:1, т.е. «не масштабировать».
Разметка OpenGraph
Кол-во: 6
Разметка OpenGraph задана. Страница оптимизирована под социальные сети.
Показать полный список og мета-тегов
| Тип | Значение |
|---|---|
| og:site_name | NIST |
| og:type | Article |
| og:url | https://www.nist.gov/srd |
| og:title | Standard Reference Data |
| og:description | For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.. |
| og:image | https://www.nist.gov/themes/custom/nist_www/img/homepage/nist_mark.png |
Все мета-теги
Кол-во: 30
Найдены мета-теги 30шт. Мета-теги не видимы для человека и предназначены для обмена информацией между веб-страницей и поисковыми системами, браузерами и другими веб-службами. С ними роботы 🤖 и устройства ведут себя более ожидаемо.
Показать полный список мета-тегов
| Тип | Название | Значение |
|---|---|---|
| name | description | For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.. |
| name | citation_title | Standard Reference Data | NIST |
| name | dcterms.title | Standard Reference Data |
| name | dcterms.description | For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.. |
| name | dcterms.date | 2012-12-12T11:04-05:00 |
| name | dcterms.type | text |
| name | dcterms.format | text/html |
| name | dcterms.identifier | https://www.nist.gov/srd |
| name | dcterms.source | NIST |
| name | dcterms.created | 2012-12-12T11:04-05:00 |
| name | dcterms.modified | 2026-04-01T11:38-04:00 |
| name | twitter:card | summary_large_image |
| name | twitter:title | Standard Reference Data |
| name | twitter:description | For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.. |
| name | twitter:site | NIST |
| name | google-site-verification | QMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA |
| name | Generator | Drupal 10 (https://www.drupal.org) |
| name | MobileOptimized | width |
| name | HandheldFriendly | true |
| name | viewport | width=device-width, initial-scale=1.0 |
| name | nist_search_modified | 2026-04-01T11:38:00-04:00 |
| name | nist_search_bundle | laboratory_organizational_unit |
| property | og:site_name | NIST |
| property | og:type | Article |
| property | og:url | https://www.nist.gov/srd |
| property | og:title | Standard Reference Data |
| property | og:description | For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.. |
| property | og:image | https://www.nist.gov/themes/custom/nist_www/img/homepage/nist_mark.png |
| property | article:published_time | 2012-12-12T11:04-05:00 |
| property | article:modified_time | 2026-04-01T11:38-04:00 |
Оптимизация Готовность: 90%
Структура
Ошибок нет
Структура документа корректна (теги <html> и <body> присутствуют в одном экземпляре).
Контент
Есть ошибки
Кол-во слов 781 не очень много. Добавьте побольше текста (хотя бы 800 слов)!
Слова из title 5 встречаются в тексте достаточно.
Абзацев с текстом 25 достаточно.
Среднее число слов в абзаце 22 достаточно.
Кол-во знаков контента 5970 на странице оптимально.
Заголовки
Ошибок нет
На странице присутствуют заголовки <h1> 1. Это прекрасно.
На странице присутствуют заголовки <h2> 4. Это хорошо.
На странице присутствуют заголовки <h3> 2.
Академич. тошнота
12,68%
Академическая тошнота страницы в пределах нормы.
Семантическое ядро
20
Контент страницы содержит осмысленный текст и слова.
Показать список слов
| Слово | Кол-во | Частота |
|---|---|---|
| reference | 13 | 1,66% |
| laboratory | 9 | 1,15% |
| database | 9 | 1,15% |
| standard | 8 | 1,02% |
| information | 6 | 0,77% |
| research | 6 | 0,77% |
| databases | 6 | 0,77% |
| physics | 5 | 0,64% |
| physical | 5 | 0,64% |
| center | 5 | 0,64% |
| structure | 5 | 0,64% |
| electron | 5 | 0,64% |
| official | 4 | 0,51% |
| chemistry | 4 | 0,51% |
| technology | 4 | 0,51% |
| standards | 4 | 0,51% |
| programs | 4 | 0,51% |
| material | 4 | 0,51% |
| measurement | 4 | 0,51% |
| office | 4 | 0,51% |
Индексация Готовность: 60%
Индексирование
Ошибок нет
Анкоров на странице 174 оптимально. Поисковые роботы обязательно проиндексируют сайт.
Robots.txt
Найден корректный robots.txt
Robots.txt настроен корректно. Размер файла: 2425 байт. Загружен за: 1сек.
Проверяемая страница не запрещена в robots.txt.
Robots.txt доступен по постоянному адресу
Показать содержимое 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
Sitemap
Кол-во: 1
Robots.txt содержит карту сайта. Это прекрасно!
Robots.txt не содержит ошибок в карте сайта.
Показать карту сайта
| Url | Статус |
|---|---|
| https://www.nist.gov/sitemap.xml |
|
Внутренние ссылки
Кол-во: 104
Внутренних ссылок на странице 104 оптимально.
Внутренние ссылки не запрещены к индексации в robots.txt.
На странице присутствуют изображения 3.
Показать первые 100 внутренних ссылок
| Url | Анкор | Состояние |
|---|---|---|
| /publications |
Publications
|
|
| /topics |
All Topics
|
|
| /advanced-communications |
Advanced communications
|
|
| /artificial-intelligence |
Artificial intelligence
|
|
| /bioscience |
Bioscience
|
|
| /buildings-and-construction |
Buildings and construction
|
|
| /chemistry |
Chemistry
|
|
| /cybersecurity-and-privacy |
Cybersecurity and Privacy
|
|
| /electronics |
Electronics
|
|
| /energy |
Energy
|
|
| /environment |
Environment
|
|
| /fire |
Fire
|
|
| /forensic-science |
Forensic science
|
|
| /health |
Health
|
|
| /information-technology |
Information technology
|
|
| /infrastructure |
Infrastructure
|
|
| /manufacturing |
Manufacturing
|
|
| /materials |
Materials
|
|
| /mathematics-and-statistics |
Mathematics and statistics
|
|
| /metrology |
Metrology
|
|
| /nanotechnology |
Nanotechnology
|
|
| /neutron-research |
Neutron research
|
|
| /performance-excellence |
Performance excellence
|
|
| /physics |
Physics
|
|
| /public-safety |
Public safety
|
|
| /quantum-information-science |
Quantum information science
|
|
| /resilience |
Resilience
|
|
| /standards |
Standards
|
|
| /transportation |
Transportation
|
|
| /adlp |
Assoc Director of Laboratory Programs
|
|
| /laboratories |
Laboratories
|
|
| /ctl |
Communications Technology Laboratory
|
|
| /el |
Engineering Laboratory
|
|
| /itl |
Information Technology Laboratory
|
|
| /mml |
Material Measurement Laboratory
|
|
| /pml |
Physical Measurement Laboratory
|
|
| /user-facilities |
User Facilities
|
|
| /ncnr |
NIST Center for Neutron Research
|
|
| /cnst |
CNST NanoFab
|
|
| /research-test-beds |
Research Test Beds
|
|
| /laboratories/projects-programs |
Research Projects
|
|
| /laboratories/tools-instruments |
Tools & Instruments
|
|
| /major-programs |
Major Programs
|
|
| /chips |
CHIPS for America Initiative
|
|
| /cds |
Congressionally Identified Project Program (CIPP)
|
|
| /mep |
Manufacturing Extension Partnership (MEP)
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| /oam |
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Time Services
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Office of Weights and Measures
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Software
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Data
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Standard Reference Data (SRD)
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NIST Research Library
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News
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Events
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Blogs
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NIST In Focus
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Feature Stories
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Awards
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Video Gallery
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SHOP
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Free SRD
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SRD Sorted by Topic
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Public Law
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SRD Definition
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Critical Evaluation Criteria
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Related Data Products and Links
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Внешние ссылки
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| Url | Анкор |
|---|---|
| webbook.nist.gov |
Chemistry WebBook
|
| nvd.nist.gov |
National Vulnerability Database
|
| shop.nist.gov |
Storefront
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| csrc.nist.gov |
Computer Security Resource Center (CSRC)
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| nistdigitalarchives.contentdm.oclc.org |
NIST Digital Archives
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| nist.gov |
<picture>
<source srcset="/sites/default/files/styles/600w_x_360h/public/images/2023/11/15/NIST_MS2023_Disk_1.png.webp?itok=QcsVu2UN 1x, /sites/default/files/styles/1200w_x_720h/public/images/2023/11/15/NIST_MS2023_Disk_1.png.webp?itok=95An9grp 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360">
<source srcset="/sites/default/files/styles/300w_x_180h/public/images/2023/11/15/NIST_MS2023_Disk_1.png.webp?itok=dCfyX0om 1x, /sites/default/files/styles/600w_x_360h/public/images/2023/11/15/NIST_MS2023_Disk_1.png.webp?itok=QcsVu2UN 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180">
<img loading="eager" width="600" height="360" src="/sites/default/files/styles/600w_x_360h/public/images/2023/11/15/NIST_MS2023_Disk_1.png.webp?itok=QcsVu2UN" alt="NIST Mass Spectral Libraries, 2023 Edition" typeof="foaf:Image">
</picture>
|
| nist.gov |
<div class="text">NIST Mass Spectral Libraries, 2026 Edition</div>
|
| nist.gov |
<picture>
<source srcset="/sites/default/files/styles/600w_x_360h/public/images/2019/11/20/lattice_135x135.jpg.webp?itok=-iadThq0 1x, /sites/default/files/styles/1200w_x_720h/public/images/2019/11/20/lattice_135x135.jpg.webp?itok=rIOFwbct 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360">
<source srcset="/sites/default/files/styles/300w_x_180h/public/images/2019/11/20/lattice_135x135.jpg.webp?itok=gYxWvBC_ 1x, /sites/default/files/styles/600w_x_360h/public/images/2019/11/20/lattice_135x135.jpg.webp?itok=-iadThq0 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180">
<img loading="eager" width="600" height="360" src="/sites/default/files/styles/600w_x_360h/public/images/2019/11/20/lattice_135x135.jpg.webp?itok=-iadThq0" alt="lattice" title="lattice" typeof="foaf:Image">
</picture>
|
| nist.gov |
<div class="text">NIST INORGANIC CRYSTAL STRUCTURE DATABASE (ICSD) SRD3</div>
|
| icsd.nist.gov |
https://icsd.nist.gov
|
| icsd.nist.gov |
https://icsd.nist.gov
|
| nist.gov |
REFPROP
|
| pages.nist.gov |
<em>FAQ</em>
|
| nist.gov |
NIST26
|
| chemdata.nist.gov |
MS Data Center
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| nist.gov |
ICSD
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| nist.gov |
TDE
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| nist.gov |
PIV Cards
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| nist.gov |
PED
|
| s3.amazonaws.com |
6.0. demo
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| pages.nist.gov |
PED Editor
|
| nist.gov |
SESSA
|
| nist.gov |
Special Databases
|
| nist.gov |
Biometrics
|
| nist.gov |
Selected NIST-Recommended Practice Guides in Material Sciences
|
| nist.gov |
NIST Simulation of Electron Spectra for Surface Analysis
|
| nist.gov |
surface databases
|
| nist.gov |
Physical Reference Data Portal
|
| webbook.nist.gov |
Chemistry WebBook
|
| nist.gov |
Atomic Spectroscopy Databases
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| nist.gov |
Thermodynamics Research Center
|
| nist.gov |
Standard Reference Materials®
|
| nist.gov |
Calibration Services
|
| nist.gov |
NIST Software
|
| github.com |
NIST on GitHub
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| nist.gov |
Exhibits at Upcoming Conferences
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| nist.gov |
Office of Data and Informatics
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| nist.gov |
Material Measurement Laboratory
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| nist.gov |
Physical Measurement Laboratory
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| nist.gov |
Contact Us
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| nist.gov |
Our Other Offices
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| nist.gov |
Site Privacy
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Privacy Program
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Copyright & Disclaimers
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| commerce.gov |
Vulnerability Disclosure
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No Fear Act Policy
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FOIA
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Environmental Policy
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| nist.gov |
Scientific Integrity
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| nist.gov |
Information Quality Standards
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| commerce.gov |
Commerce.gov
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| science.gov |
Science.gov
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| usa.gov |
USA.gov
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| vote.gov |
Vote.gov
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