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Home - CHM
https://computerhistory.org/
3 high issues
9.1%
2 medium issues
6.1%
3 low issues
9.1%
25 tests passed
75.8%
0.14 seconds
23.42 kB
33 resources
Secure
Seo
Title
The title tag is perfect.
Home - CHM
Meta description
The meta description tag is missing or empty.
Headings
The headings are properly set.
  1. CHM Decodes Technology for Everyone
  1. CHM is Open! Join Us.
  2. CHM In the News
  3. Upcoming Events
  4. TechQuest
  5. Music-Film-Computers
  6. Exhibits
  7. From Our Blogs
  9. Activities & Resources
  10. Discover More at CHM
  12. CHM on YouTube
  14. What Are You Looking For?
  15. Hours and Directions
  1. Explore Exhibits
  2. Featured
  1. CHM Launches Game on Roblox
  2. Meet the 2022 Fellow Award Honorees
  3. Microsoft Features CHM Digital Transformation Journey
  4. Computers v. Crime with NOVA
  5. Machine Learning for Policymakers
  6. Revolution: The First 2000 Years of Computing
  7. One Word
  8. Make Software: Change the World!
  9. 2022 Fellow Award Ceremony
  10. Smalltalk at 50
  11. Music-Film-Computers
  12. #MyCHMExhibit Challenge
  13. Revolution Virtual Scavenger Hunt: For Grades 6–12
  14. Educator Resource Guide for CHM's Minecraft World
  15. CHM Live
  16. Public Tours & Group Reservations
  17. Exhibits
  18. Collections
  19. This Is CHM
  20. Core Magazine
  21. CHM Live
  22. Make Software: Change the World!
  23. One Word Lessons
  1. About
  11. CHM BLOG
  12. CHM BLOG
  13. CHM BLOG
  17. Connect
  18. Visit
  19. Visit
  20. EXPLORE
  21. About
  22. Publications
Content keywords
The content has relevant keywords.
homechm
Image keywords
There are 11 images with missing alt attributes.
  1. https://computerhistory.org/wp-content/themes/bsdstarter/assets/img/chm-logo-invert.svg
  2. https://computerhistory.org/wp-content/themes/bsdstarter/assets/img/chm-logo-text.svg
  3. https://computerhistory.org/wp-content/themes/bsdstarter/assets/img/chm-logo-short.svg
  4. https://computerhistory.org/wp-content/uploads/2019/08/CHM-Live-760x0-c-default.jpg
  5. https://computerhistory.org/wp-content/uploads/2019/08/The-Rest-CHM-Software-Wing-014-760x0-c-default.jpg
  6. https://computerhistory.org/wp-content/uploads/2019/08/at-the-museum-overview-760x0-c-default.jpg
  7. https://computerhistory.org/wp-content/uploads/2019/08/cyc-065-crop-1-760x0-c-default.jpg
  8. https://computerhistory.org/wp-content/uploads/2019/07/LL-044-760x0-c-default.jpg
  9. https://computerhistory.org/wp-content/uploads/2019/08/chm_site-04-760x0-c-default.jpg
  10. https://computerhistory.org/wp-content/themes/bsdstarter/assets/img/chm-logo-short.svg
  11. https://computerhistory.org/wp-content/uploads/2021/02/chm_yt_header_2560x1440-e1613084298885-1024x235.jpg
SEO friendly URL
The URL does not contain any relevant keywords.
https://computerhistory.org/
404 page
The website has 404 error pages.
https://computerhistory.org/404-ca6d7ec5624339db7387e2c64ebe1797
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
  1. https://computerhistory.org
  2. Explore
  3. Overview
  4. Stories
  5. Timelines
  6. Collections
  7. Playlists
  8. Blogs
  9. Publications
  10. Connect
  11. Overview
  12. Events
  13. K-12 Students & Educators
  14. Families & Community Groups
  15. Colleges & Universities
  16. Business & Government Leaders
  17. Volunteers
  18. Visit
  19. Overview
  20. Plan Your Visit
  21. Exhibits
  22. Public Tours & Group Reservations
  23. Customize It
  24. Venue
  25. About
  26. Overview
  27. This Is CHM
  28. Centers
  29. Programs
  30. News
  31. Leadership
  32. Join & Give
  33. Overview
  34. Ways to Give
  35. Donor Recognition
  36. Institutional Partnerships
  37. Donate
  38. Hours & Admission
  39. Subscribe
  40. Upcoming Events
  41. Holiday Schedule
  42. View All
  43. CHM Launches Game on Roblox
  44. Meet the 2022 Fellow Award Honorees
  45. View All
  46. View All
  47. Computers v. Crime with NOVA Tue, Nov, 1, 7:00PM
  48. Machine Learning for Policymakers Thu, Nov, 17, 10:00AM
  49. View All
  50. TechQuest
  51. Music-Film-Computers
  52. View All
  53. Revolution: The First 2000 Years of Computing Revolution features 19 galleries, 1,100 objects, and inspiring stories from the pioneers and innovators who started the revolution that changed our world. Experience this exhibit online or in person.
  54. One Word Courage, creativity, grit, kindness... These are just a few of the words of advice offered by Silicon Valley leaders to aspiring entrepreneurs.
  55. Make Software: Change the World! Make Software explores the history, impact, and technology behind seven game-changing applications: MP3, Photoshop, MRI, Car Crash Simulation, Wikipedia, Texting, and World of Warcraft. Experience this exhibit online or in person.
  56. View All
  57. View all
  58. CHM BLOG 2022 Fellow Award Ceremony By CHM Editorial
  59. CHM BLOG Smalltalk at 50 By CHM Editorial
  60. CHM BLOG Music-Film-Computers By David C. Brock
  61. View all
  62. TechQuest
  63. View All
  64. #MyCHMExhibit Challenge Put on your museum thinking caps and get ready to create your very own exhibit—at home! Participants will learn about the museum exhibit development process and have a chance to role play as a curator, registrar, experience designer, and filmmaker.
  65. Revolution Virtual Scavenger Hunt: For Grades 6–12 Discover the treasures of Revolution: The First 2,000 Years of Computing. Our virtual scavenger hunt is specially designed for students in grades 6–12 and explores the exhibit's key artifacts and stories.
  66. Educator Resource Guide for CHM's Minecraft World The Great Tech Story, the Museum’s world in Minecraft: Education Edition, inspires and empowers students from ages 8–16 to become engaged technology citizens.
  67. View All
  68. https://computerhistory.org/chm-live/
  69. Connect CHM Live
  70. https://computerhistory.org/tours/
  71. Visit Public Tours & Group Reservations
  72. https://computerhistory.org/exhibits/
  73. Visit Exhibits
  74. https://computerhistory.org/collections/
  75. EXPLORE Collections
  76. https://computerhistory.org/this-is-chm/
  77. About This Is CHM
  78. https://computerhistory.org/core-magazine/
  79. Publications Core Magazine
  80. K–12 Students & Educators
  81. Families & Community Groups
  82. Colleges & Universities
  83. Business & Government Leaders
  84. Hours & Directions
  85. More Contact Info
  86. Press
  87. Careers
  88. Venue
  89. Events
  90. Stories
  91. Donate
  92. https://computerhistory.org
  93. Terms of Use
  94. Privacy
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://computerhistory.org/wp-content/themes/bsdstarter/favicon.ico
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.14 seconds.
Page size
The size of the HTML webpage is 23,416.00.
HTTP requests
There are fewer than 33 HTTP requests on the webpage.
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  5. https://computerhistory.org/wp-content/uploads/2019/08/The-Rest-CHM-Software-Wing-014-760x0-c-default.jpg
  6. https://computerhistory.org/wp-content/uploads/2019/08/at-the-museum-overview-760x0-c-default.jpg
  7. https://computerhistory.org/wp-content/uploads/2019/08/cyc-065-crop-1-760x0-c-default.jpg
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Image format
There are 7 images that are not using the AVIF, WebP format.
  1. https://computerhistory.org/wp-content/uploads/2019/08/CHM-Live-760x0-c-default.jpg
  2. https://computerhistory.org/wp-content/uploads/2019/08/The-Rest-CHM-Software-Wing-014-760x0-c-default.jpg
  3. https://computerhistory.org/wp-content/uploads/2019/08/at-the-museum-overview-760x0-c-default.jpg
  4. https://computerhistory.org/wp-content/uploads/2019/08/cyc-065-crop-1-760x0-c-default.jpg
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JavaScript defer
The are 15 javascript resources without the defer attribute.
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DOM size
The DOM size is optimal.
The HTML file has 602 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://computerhistory.org/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
nginx
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.
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        Character set
        The webpage has a charset value set.
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        Sitemap
        The website has sitemaps.
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        Social
        The webpage has 7 social links.
        Content length
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        Text to HTML ratio
        The text to HTML ratio is under 10%
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        The webpage contains inline CSS code.
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        Deprecated HTML
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