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NSF - National Science Foundation
NSF's mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country.
https://nsf.gov/
0 high issues
0.0%
4 medium issues
12.1%
2 low issues
6.1%
27 tests passed
81.8%
0.17 seconds
17.35 kB
5 resources
Secure
Seo
Title
The title tag is perfect.
NSF - National Science Foundation
Meta description
The meta description tag is good.
NSF's mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country.
Headings
The headings are properly set.
  1. National Science Foundation - Where Discoveries Begin
  1. News Feature
  2. NSF News
  3. Science Matters
  4. Science Matters
  5. NSF News
  6. NSF News
  7. NSF Social Media
  8. NSF Funding & Research Community
  9. News and Gallery
  10. Funding & Awards
  11. Document Library& About NSF
  12. About Services
  13. NSF Award Highlights
  14. Contact
  1. NSF announces name changes to education directorate
  2. The secret success of slime
  3. Biotechnology sector materializes from Yellowstone hot springs
  4. NSF congratulates laureates of 2022 Nobel Prize in economics
  5. NSF congratulates laureates of 2022 Nobel Prize in chemistry
  6. Where it Comes From
  7. Where it Goes - Institutions Funded by NSF
  8. How it Gets There - NSF Award Mechanisms
  9. How it is Spent
  10. Twitter
  11. Follow Us
  12. Special Notices
  13. Event Calendar
  14. Funding Opportunities
  1. Film, TV, Museums and More
  2. Multimedia Gallery & Photo Galleries
  3. Learning Resources
  1. Brains and Beakers
  2. Behind the scenes in Antarctica with the National Science Foundation and Disneynature Penguins
  3. Research on learning in formal & informal settings
Content keywords
The content has relevant keywords.
nsfnationalsciencefoundation
Image keywords
All images have alt attributes set.
SEO friendly URL
The URL is SEO friendly.
https://nsf.gov/
404 page
The website has 404 error pages.
https://nsf.gov/404-7086efc3da94e37479ac64d649cdcfce
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. Check Operating Status
  2. STEM Education (EDU)
  3. Technology, Innovation and Partnerships (TIP)
  4. Funding
  5. About Funding
  6. Due Dates
  7. Find Funding
  8. Recent Opportunities
  9. Research.gov
  10. FastLane
  11. Graduate Students
  12. K-12 Educators
  13. Postdoctoral Fellows
  14. Undergraduate Students
  15. Small Business
  16. Award Statistics (Budget Internet Info System)
  17. Research.gov
  18. FastLane
  19. Public Access Initiative
  20. National Center for Science and Engineering Statistics (NCSES)
  21. News
  22. Find News
  23. Events
  24. Career Opportunities
  25. Office of Small and Disadvantaged Business Utilization (OSDBU)
  26. Remote Participant Support
  27. Read the latest information from NSF on coronavirus (COVID-19)
  28. NSF News NSF announces name changes to education directorate Full Story
  29. Science Matters The secret success of slime Full Story
  30. Science Matters Biotechnology sector materializes from Yellowstone hot springs Full Story
  31. NSF News NSF congratulates laureates of 2022 Nobel Prize in economics Full Story
  32. NSF News NSF congratulates laureates of 2022 Nobel Prize in chemistry Full Story
  33. Mysterious radio bursts from space detectedJuly 7, 2022
  34. Study shows that 'green islands' help forests regenerate after fireJuly 6, 2022
  35. Pigment or optical illusion? What makes this berry blueJuly 6, 2022
  36. Bringing magma up to our feet in AntarcticaJuly 5, 2022
  37. View All
  38. View All
  39. Research on learning in formal & informal settings
  40. Follow
  41. Sign up for updates
  42. Facebook
  43. Twitter
  44. LinkedIn
  45. YouTube
  46. RSS
  47. Instagram
  48. See all NSF social media
  49. October 27, 2022 Human Networks and Data Science Program Office HourOutreach
  50. October 28, 2022 Mid-Scale Research Infrastructure-1 Program WebinarWebcast
  51. November 1, 2022 Diversifying Diversity: New Research Opportunities in the Social, Behavioral and Economic SciencesWorkshop
  52. View All Events
  53. Biology
  54. Computer, Info. Sci., Eng.
  55. Crosscutting, NSF-wide
  56. Education
  57. Engineering
  58. Environmental Research
  59. Geosciences
  60. Integrative Activities
  61. International Science & Engineering
  62. Math, Physical Sciences
  63. Social, Behavioral, Econ.
  64. View all funding opportunities
  65. Upcoming Due Dates
  66. Submit Proposal to FastLane
  67. National Science Foundation
  68. Research.gov
  69. Find Funding
  70. Recently Announced Funding Opportunities
  71. Upcoming Funding Opportunity Due Dates
  72. Careers
  73. ACM$ (Award Cash Management Service)
  74. Notifications & Requests
  75. Project Reports
  76. Proposal Status
  77. Public Access
  78. User Management
  79. Research Spending & Results
  80. Contact Help Desk
  81. Facebook
  82. Twitter
  83. Instagram
  84. YouTube
  85. USA.gov
  86. Research.gov
  1. National Science Foundation - Where Discoveries Begin
  2. Contact
  3. Help
  4. NSB
  5. NSB
  6. Research Areas
  7. Biological Sciences (BIO)
  8. Computer and Information Science and Engineering (CISE)
  9. Engineering (ENG)
  10. Environmental Research and Education (ERE)
  11. Geosciences (GEO)
  12. Integrative Activities (OIA)
  13. International Science and Engineering (OISE)
  14. Mathematical and Physical Sciences (MPS)
  15. Social, Behavioral and Economic Sciences (SBE)
  16. Interdisciplinary Research
  17. NSF Organization List
  18. Responsible and Ethical Conduct of Research
  19. Staff Directory
  20. Understanding NSF Research
  21. Archived Funding Search
  22. Merit Review
  23. Policies and Procedures
  24. Preparing Proposals
  25. Transformative Research
  26. Proposal and Award Policies and Procedures Guide (PAPPG)
  27. Awards
  28. About Awards
  29. Award Conditions
  30. Managing Awards
  31. Policies and Procedures
  32. Presidential and Honorary Awards
  33. Search Awards
  34. Document Library
  35. All Documents
  36. Obtaining Documents
  37. Search Documents
  38. For News Media
  39. Media Advisories
  40. Multimedia Gallery
  41. News Archive
  42. Search News
  43. Special Reports
  44. Speeches and Lectures
  45. About NSF Logo
  46. About NSF
  47. About NSF
  48. Broadening Participation/Diversity
  49. Budget and Performance
  50. Contracting Opportunities
  51. History
  52. National Science Board (NSB)
  53. NSF and Congress
  54. NSF Toolkit
  55. Office of Equity and Civil Rights
  56. Organization List
  57. Partners
  58. Responsible and Ethical Conduct of Research
  59. Staff Directory
  60. Transparency and Accountability
  61. Visit NSF
  62. Read statement on deadline extensions and flexibilities.
  63. Where it Comes From
  64. For more information, see page 2 of NSF FY 2021 Performance and Financial Highlights
  65. View more Budget and Performance information
  66. Where it Goes - Institutions Funded by NSF
  67. For more information, see page 2 of NSF FY 2021 Performance and Financial Highlights
  68. View more Budget and Performance information
  69. How it Gets There - NSF Award Mechanisms
  70. For more information, see page 2 of NSF FY 2021 Performance and Financial Highlights
  71. View more Budget and Performance information
  72. How it is Spent
  73. For more information, see page 2 of NSF FY 2021 Performance and Financial Highlights
  74. View more Budget and Performance information
  75. Brains and Beakers
  76. Behind the scenes in Antarctica with the National Science Foundation and Disneynature Penguins
  77. Information Regarding Court Orders and Injunctions Regarding Executive Order 14042
  78. Recent Scam Involving NSF's Name and Likeness
  79. Dear Colleague Letter: Research Protection
  80. Personnel Policy on Foreign Government Talent Recruitment Programs
  81. NSF Issues Revised Proposal & Award Policies & Procedures Guide (PAPPG) (NSF 22-1)
  82. NSF Responses to Natural Disasters
  83. Training in Responsible Conduct of Research – A Reminder of the NSF Requirement
  84. NSF and Congress: Latest Actions
  85. NSF Strategic Plan for FY 2018-2022
  86. Important information about DMARC and email delivery from NSF
  87.   RSS
  88. STOP HARASSMENT
  89. Proposal and Award Policies and Procedures Guide
  90. Prepare a Proposal
  91. Media Inquiries
  92. Multimedia Gallery
  93. Award Search
  94. Proposal & Award Policies Procedures Guide (PAPPG)
  95. Document Library
  96. About NSF
  97. Staff Directory
  98. See all NSF social media
  99. Website Policies
  100. Budget and Performance
  101. Inspector General
  102. Privacy
  103. FOIA
  104. No FEAR Act
  105. Accessibility
  106. Plain Language
  107. Contact
  108. Help
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://nsf.gov/images/favicon-16x16.png
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.17 seconds.
Page size
The size of the HTML webpage is 17,352.00.
HTTP requests
There are fewer than 5 HTTP requests on the webpage.
  1. https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NSF&dclink=true&ver=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://nsf.gov/js/main.min.js
  1. https://nsf.gov/css/main.min.css
  2. https://nsf.gov/css/print.min.css
  1. https://nsf.gov/news/home_banner_css/slider_img/EDU_Rollout_b.jpg
Image format
There are 1 images that are not using the AVIF, WebP format.
  1. https://nsf.gov/news/home_banner_css/slider_img/EDU_Rollout_b.jpg
JavaScript defer
The are 2 javascript resources without the defer attribute.
  1. https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NSF&dclink=true&ver=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://nsf.gov/js/main.min.js
DOM size
The DOM size is optimal.
The HTML file has 705 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://nsf.gov/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
Apache/2.4.34 (Red Hat) OpenSSL/1.0.2k-fips
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
There are no structured data tags on the webpage.
Meta viewport
The webpage has a meta viewport tag set.
width=device-width, initial-scale=1
Character set
The webpage has a charset value set.
UTF-8
Sitemap
The website has sitemaps.
  1. https://www.nsf.gov/sitemap.xml
Social
The webpage does not contain any social links.
Content length
The webpage has 2,174 words.
Text to HTML ratio
The text to HTML ratio is 23%.
Inline CSS
The webpage does not contain inline CSS code.
Deprecated HTML
There are no deprecated HTML tags on the webpage.