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National Institutes of Health (NIH) | Turning Discovery Into Health
Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,
https://www.nih.gov/
2 high issues
6.1%
2 medium issues
6.1%
3 low issues
9.1%
26 tests passed
78.8%
0.11 seconds
15.10 kB
37 resources
Secure
Seo
Title
The title tag must be between 1 and 60 characters.
The current title has 67 characters.
Meta description
The meta description tag is good.
Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,
Headings
There is no h1 tag on the webpage.
  1. Site Menu
  2. COVID-19
  3. nih-at-a-glance-whoweare.jpg
  4. lawrence-tabak-portrait-thumbnail.jpg
  5. nih-at-a-glance-funding.jpg
  6. nih-at-a-glance-labs.jpg
  7. nih-at-a-glance-training.jpg
  8. researcher-holding-petri-dish.jpg
  9. Connect with Us
  10. Footer
  1. NIH Research Matters
  2. Welcoming Fall
  3. Protect Your Hearing
  4. October is SIDS Awareness Month
  5. October is Liver Awareness Month
  6. In the News
  7. NIH at a Glance
  8. COVID-19
  9. Featured Resources & Initiatives
  10. Nondiscrimination Notice and Language Assistance Services
  1. Robotic Leg
  2. COVID-19 Vaccination
  3. Heart Failure Care
  4. Monkeypox
  5. Who We Are
  6. The NIH Director
  7. Funding for Research
  8. Labs at NIH
  9. Training at NIH
  10. Jobs at NIH
  11. ACTIV
  12. Rapid Acceleration of Diagnostics (RADx)
  13. RECOVER
  14. COVID-19 Treatment Guidelines
  15. Research information from NIH
  16. NIH staff guidance on coronavirus NIH Only
  17. ARPA-H
  18. Anti-Sexual Harassment
  19. Ending Structural Racism
  20. All of Us Research Program
  21. NIH HEAL Initiative
  22. Clinical Trials
  23. Accelerating Medicines Partnership
  24. Impact of NIH Research
  25. Medical Research Initiatives
Content keywords
The content has relevant keywords.
nationalinstitutesofhealthnihturningdiscoveryintohealth
Image keywords
All images have alt attributes set.
SEO friendly URL
The URL is SEO friendly.
https://www.nih.gov/
404 page
The website has 404 error pages.
https://www.nih.gov/404-1947e501589c1f649cf275313e707e6c
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The webpage contains more than 150 links.
  1. https://www.nih.gov/
  2. Home
  3. Health Information
  4. Health Info Lines
  5. Science Education Resources
  6. NIH Clinical Research Trials and You
  7. Talking to Your Doctor
  8. More »
  9. Wellness Toolkits
  10. Grants & Funding
  11. More »
  12. News & Events
  13. News Releases
  14. Digital Media Kits
  15. Media Resources
  16. Media Contacts
  17. Images and B-roll
  18. Events
  19. Social Media
  20. More »
  21. NIH Research Matters
  22. Research & Training
  23. Medical Research Initiatives
  24. Science Highlights
  25. Science Education
  26. Research in NIH Labs & Clinics
  27. Training Opportunities
  28. Library Resources
  29. Research Resources
  30. Clinical Research Resources
  31. Safety, Regulation and Guidance
  32. More »
  33. Institutes at NIH
  34. List of Institutes and Centers
  35. NIH Office of the Director
  36. Directors of NIH Institutes and Centers
  37. NIH Institute and Center Contact Information
  38. More »
  39. About NIH
  40. Who We Are
  41. What We Do
  42. Visitor Information
  43. Frequently Asked Questions
  44. Contact Us
  45. More »
  46. The NIH Director
  47. The NIH Almanac
  48. NIH…Turning Discovery Into Health®
  49. Impact of NIH Research
  50. Science, Health, and Public Trust
  51. NIH Research Matters
  52. Learn more »
  53. Robotic Leg
  54. Heart Failure Care
  55. nih-at-a-glance-whoweare.jpg
  56. Who We Are
  57. lawrence-tabak-portrait-thumbnail.jpg
  58. The NIH Director
  59. nih-at-a-glance-funding.jpg
  60. nih-at-a-glance-labs.jpg
  61. nih-at-a-glance-training.jpg
  62. Training at NIH
  63. researcher-holding-petri-dish.jpg
  64. ACTIV
  65. Rapid Acceleration of Diagnostics (RADx)
  66. ARPA-H
  67. Anti-Sexual Harassment
  68. Ending Structural Racism
  69. Clinical Trials
  70. Accelerating Medicines Partnership
  71. Impact of NIH Research
  72. Medical Research Initiatives
  73. English
  74. Español
  75. 繁體中文
  76. Tiếng Việt
  77. 한국어
  78. Tagalog
  79. Русский
  80. العربي
  81. Kreyòl Ayisyen
  82. Français
  83. Polski
  84. Português
  85. Italiano
  86. Deutsch
  87. 日本語
  88. فارس
  89. Contact Us
  90. More Social Media from NIH
  91. NIH Home
  92. Site Map
  93. Visitor Information
  94. Frequently Asked Questions
  95. Web Policies and Notices
  96. NIH Website Archives
  97. Freedom of Information Act
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://www.nih.gov/sites/all/themes/nih/apple-touch-icon.png
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.11 seconds.
Page size
The size of the HTML webpage is 15,099.00.
HTTP requests
There are fewer than 37 HTTP requests on the webpage.
  1. https://www.nih.gov/sites/all/libraries/DAP/Universal-Federated-Analytics-Min.1.0.js?agency=HHS&subagency=NIH&pua=UA-22075261-1&sp=find&yt=true&exts=doc,docx,xls,xlsx,xlsm,ppt,pptx,exe,zip,pdf,js,txt,csv,dxf,wmv,jpg,wma,mov,avi,mp3,mp4,csv
  2. https://www.nih.gov/sites/default/files/js/js_mQAv54bz2JVXcwS5QWlz0fVY9Os67zeu9bgNqtlVLPY.js
  3. https://code.jquery.com/jquery-1.12.4.min.js
  4. https://code.jquery.com/jquery-migrate-1.4.1.min.js
  5. https://www.nih.gov/sites/default/files/js/js_hFyssOQhsL4zoxLl1v-ggyCleffIo8Azo9R3qWILLcY.js
  6. https://www.nih.gov/sites/default/files/js/js_hNnF7a_sbk6nZ2-mOamHzalYND7HBHDLRInsaU93HDk.js
  7. https://cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.js
  8. https://script.crazyegg.com/pages/scripts/0011/2616.js
  9. https://www.nih.gov/sites/default/files/js/js_p_5TGkAYBXvjZzXQnOkReOsu23rs8l2zrtkevf9KZCI.js
  10. https://www.nih.gov/sites/default/files/js/js_u7NkY8T8nlOgV0rVVicmfB0CUuCvZZE_2_NkS4ohh6A.js
  11. https://www.nih.gov/sites/default/files/js/js_E9yUYWK8EMydR0HMIp2PahVxPAClXyH0Cnh782A15UM.js
  1. https://www.nih.gov/sites/default/files/css/css_PfvPCWanzn7FjDwZqwAHhPoOxYKwkQP-RZSK1pFFG0s.css
  2. https://www.nih.gov/sites/default/files/css/css__mIWP9gcStq74isjZVoAAsiih8VXwJoN75Nyw_BXrj0.css
  3. https://www.nih.gov/sites/default/files/css/css_jENQOQqZCRFGZK__DTefxYiXR2RUf03k1ugj3_Vg7vk.css
  4. https://cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.css
  5. https://www.nih.gov/sites/default/files/css/css_3yt-b0M1HNJsvKsXwYjh5TEtX2lJGAvJvtmVAfORYZs.css
  6. https://fonts.googleapis.com/css?family=Droid+Sans:700,regular|Droid+Serif:italic,regular&subset=latin
  7. https://www.nih.gov/sites/default/files/css/css_oTdMQ9QWtIt933yCG_bKROjEPaHnpw9Ef0Rw7TKOWrs.css
  8. https://www.nih.gov/sites/default/files/css/css_5rDMv37-JxnNA70cRr_1jlAjVs56DCb8EN4XB2QLl0c.css
  9. https://www.nih.gov/sites/default/files/css/css_KviiBystpJcQq4MplcQZvCFxnu9V763f5bPq_AKh4xM.css
  1. https://www.nih.gov/sites/all/themes/nih/images/nih-logo-color.png
  2. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-neurons.jpg?itok=cmSL4IBR×tamp=1666816846
  3. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-be-mindful-of-alcohol-intake.jpg?itok=e3cfC8Sq×tamp=1666283023
  4. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-protect-your-hearing.jpg?itok=sOX44_Yc×tamp=1666283214
  5. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-safe-sleep_0.jpg?itok=V2XxdPce×tamp=1666283102
  6. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-liver_0.jpg?itok=wbZo_g9H×tamp=1666283125
  7. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221025-exo.jpg?itok=l3cpKYj6×tamp=1666809920
  8. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221019-booster.jpg?itok=W9bUsqhB×tamp=1666199508
  9. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221019-disparities.jpg?itok=kEtvbtmJ×tamp=1666200891
  10. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20220726-monkeypox.jpg?itok=vWlXxcgb×tamp=1658860166
  11. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-whoweare.jpg?itok=cDJSq9lF
  12. https://www.nih.gov/sites/default/files/styles/thumbnail/public/about-nih/nih-director/lawrence-tabak-portrait-thumbnail.jpg?itok=89vo1PxE
  13. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-funding.jpg?itok=8s0rOmpa
  14. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-labs.jpg?itok=HFyWgTQv
  15. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-training.jpg?itok=3lxzN4AE
  16. https://www.nih.gov/sites/default/files/styles/thumbnail/public/about-nih/researcher-holding-petri-dish.jpg?itok=af4KZKn0
  1. https://www.googletagmanager.com/ns.html?id=GTM-5CBCNW2
Image format
There are 16 images that are not using the AVIF, WebP format.
  1. https://www.nih.gov/sites/all/themes/nih/images/nih-logo-color.png
  2. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-neurons.jpg?itok=cmSL4IBR×tamp=1666816846
  3. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-be-mindful-of-alcohol-intake.jpg?itok=e3cfC8Sq×tamp=1666283023
  4. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-protect-your-hearing.jpg?itok=sOX44_Yc×tamp=1666283214
  5. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-safe-sleep_0.jpg?itok=V2XxdPce×tamp=1666283102
  6. https://www.nih.gov/sites/default/files/styles/slide_breakpoint-medium-small/public/home_0/slides/current/slide-liver_0.jpg?itok=wbZo_g9H×tamp=1666283125
  7. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221025-exo.jpg?itok=l3cpKYj6×tamp=1666809920
  8. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221019-booster.jpg?itok=W9bUsqhB×tamp=1666199508
  9. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20221019-disparities.jpg?itok=kEtvbtmJ×tamp=1666200891
  10. https://www.nih.gov/sites/default/files/styles/itn_breakpoint-medium/public/home_0/itn/current/20220726-monkeypox.jpg?itok=vWlXxcgb×tamp=1658860166
  11. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-whoweare.jpg?itok=cDJSq9lF
  12. https://www.nih.gov/sites/default/files/styles/thumbnail/public/about-nih/nih-director/lawrence-tabak-portrait-thumbnail.jpg?itok=89vo1PxE
  13. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-funding.jpg?itok=8s0rOmpa
  14. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-labs.jpg?itok=HFyWgTQv
  15. https://www.nih.gov/sites/default/files/styles/thumbnail/public/home_0/at-a-glance/nih-at-a-glance-training.jpg?itok=3lxzN4AE
  16. https://www.nih.gov/sites/default/files/styles/thumbnail/public/about-nih/researcher-holding-petri-dish.jpg?itok=af4KZKn0
JavaScript defer
The are 10 javascript resources without the defer attribute.
  1. https://www.nih.gov/sites/all/libraries/DAP/Universal-Federated-Analytics-Min.1.0.js?agency=HHS&subagency=NIH&pua=UA-22075261-1&sp=find&yt=true&exts=doc,docx,xls,xlsx,xlsm,ppt,pptx,exe,zip,pdf,js,txt,csv,dxf,wmv,jpg,wma,mov,avi,mp3,mp4,csv
  2. https://www.nih.gov/sites/default/files/js/js_mQAv54bz2JVXcwS5QWlz0fVY9Os67zeu9bgNqtlVLPY.js
  3. https://code.jquery.com/jquery-1.12.4.min.js
  4. https://code.jquery.com/jquery-migrate-1.4.1.min.js
  5. https://www.nih.gov/sites/default/files/js/js_hFyssOQhsL4zoxLl1v-ggyCleffIo8Azo9R3qWILLcY.js
  6. https://www.nih.gov/sites/default/files/js/js_hNnF7a_sbk6nZ2-mOamHzalYND7HBHDLRInsaU93HDk.js
  7. https://cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.js
  8. https://www.nih.gov/sites/default/files/js/js_p_5TGkAYBXvjZzXQnOkReOsu23rs8l2zrtkevf9KZCI.js
  9. https://www.nih.gov/sites/default/files/js/js_u7NkY8T8nlOgV0rVVicmfB0CUuCvZZE_2_NkS4ohh6A.js
  10. https://www.nih.gov/sites/default/files/js/js_E9yUYWK8EMydR0HMIp2PahVxPAClXyH0Cnh782A15UM.js
DOM size
The DOM size is optimal.
The HTML file has 794 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://www.nih.gov/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage does not have a public server signature.
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage does not contain any plaintext emails.
Miscellaneous
Structured data
The webpage has structured data.
      Meta viewport
      The webpage has a meta viewport tag set.
      width=device-width, initial-scale=1.0
      Character set
      The webpage has a charset value set.
      utf-8
      Sitemap
      The website has sitemaps.
      1. https://www.nih.gov/sitemap.xml
      2. https://newsinhealth.nih.gov/sitemap.xml
      3. https://nihrecord.nih.gov/sitemap.xml
      Social
      The webpage has 4 social links.
      Content length
      The webpage has 971 words.
      Text to HTML ratio
      The text to HTML ratio is under 10%
      The text to HTML ratio is 9%.
      Inline CSS
      The webpage contains inline CSS code.
      1. display:none;visibility:hidden
      2. margin:0;padding:0;display:inline
      3. margin:0;padding:0;display:inline
      Deprecated HTML
      There are no deprecated HTML tags on the webpage.