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American Chemical Society
ACS is one of the world’s largest scientific societies and the premier home of chemistry professionals. Find career opportunities, educational resources and more.
https://www.acs.org/content/acs/en.html
2 high issues
6.1%
2 medium issues
6.1%
3 low issues
9.1%
26 tests passed
78.8%
0.04 seconds
14.70 kB
14 resources
Secure
Seo
Title
The title tag is perfect.
American Chemical Society
Meta description
The meta description tag is good.
ACS is one of the world’s largest scientific societies and the premier home of chemistry professionals. Find career opportunities, educational resources and more.
Headings
The headings are properly set.
  1. Welcome to Amerian Chemical Society
  1. Connect with the World's Largest Scientific Community
  2. Discover more with ACS scientific resources
  3. Advance your Career in the Global Economy
  4. Promote Excellence in Education
  5. 2021 ACS Annual Report
  6. ACS takes your privacy seriously
  7. EXPLORE ACS
  8. MOLECULE OF THE WEEK
  9. Improve the world through the transforming power of chemistry
  10. Improve the world through the transforming power of chemistry
  11. Improve the world through the transforming power of chemistry
  12. Improve the world through the transforming power of chemistry
  13. Improve the world through the transforming power of chemistry
  14. Your Success is Our Success
  1. Meetings & Events
  2. Careers
  3. Students & Educators
  4. Communities
  5. Discover Chemistry
  6. Funding & Awards
Content keywords
The content has relevant keywords.
americanchemicalsociety
Image keywords
There are 8 images with missing alt attributes.
  1. https://www.acs.org/content/acs/en/_jcr_content/mainContent/herocontainer_731744986/containerPar/columnsbootstrap/column0/image.scale.medium.jpg/1621870822711.jpg
  2. https://www.acs.org/content/dam/acsorg/home/stories/headshot01.jpg
  3. https://www.acs.org/content/dam/acsorg/home/stories/headshot03.jpg
  4. https://www.acs.org/content/dam/acsorg/home/stories/headshot02.jpg
  5. https://www.acs.org/content/dam/acsorg/home/stories/headshot04.jpg
  6. https://www.acs.org/content/dam/acsorg/home/stories/headshot05.jpg
  7. https://www.acs.org/content/dam/acsorg/home/stories/headshot06.jpg
  8. https://www.acs.org/content/dam/acsorg/home/stories/headshot07.jpg
SEO friendly URL
The URL does not contain any relevant keywords.
https://www.acs.org/content/acs/en.html
404 page
The website has 404 error pages.
https://www.acs.org/404-8cdf9c0280aec20ba9b11c36ee0f26b3
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. ACS
  2. https://www.acs.org/content/acs/en.html
  3. Meetings & Events
  4. Meetings & Events
  5. ACS Meetings & Expositions
  6. Regional Meetings
  7. Green Chemistry Conferences
  8. Events Calendar
  9. Future ACS Meetings
  10. Submit an Abstract
  11. Leadership Development
  12. ACS Webinars
  13. View all Meetings & Events
  14. https://www.acs.org/content/acs/en/meetings/acs-meetings/spring-2023.html
  15. ACS Spring 2023
  16. Careers
  17. Careers
  18. Develop and grow in your career
  19. Find and land a job
  20. Explore career options
  21. Find networking opportunities
  22. Careers & the Chemical Sciences
  23. Career Events
  24. View all Careers
  25. https://www.acs.org/content/acs/en/careers.html
  26. Explore Career Options
  27. Students & Educators
  28. Students & Educators
  29. Educational Resources
  30. For Students
  31. For Educators
  32. Explore Chemistry
  33. Standards & Guidelines
  34. Science Outreach
  35. Books & Magazines
  36. View all Students & Educators
  37. https://www.acs.org/content/acs/en/education/educators/acs-hach-programs.html
  38. ACS-Hach Programs
  39. Communities
  40. Communities
  41. Technical Divisions
  42. Local Sections
  43. Industry Resources
  44. International Chapters
  45. International Resources
  46. Green Chemistry Roundtables
  47. Senior Chemists
  48. Student Chapters
  49. High School Club
  50. View all Communities
  51. https://www.acs.org/content/acs/en/technical-divisions.html
  52. Technical Divisions
  53. Discover Chemistry
  54. Discover Chemistry
  55. Science Articles
  56. ACS Webinars
  57. Green Chemistry
  58. Safety
  59. Tiny Matters Podcast
  60. News Releases
  61. Reactions Videos
  62. Landmarks in Chemical History
  63. Infographics
  64. View all Discover Chemistry
  65. https://www.acs.org/content/acs/en/pressroom/reactions.html
  66. Reactions: Chemistry Science Videos & Infographics
  67. Funding & Awards
  68. Funding & Awards
  69. Awards
  70. Grants
  71. Scholarships & Fellowships
  72. National Awards
  73. Petroleum Research Fund
  74. Industry Awards
  75. Green Chemistry
  76. Local Sections
  77. Technical Divisions
  78. View all Funding & Awards
  79. https://www.acs.org/content/acs/en/funding/awards/chemluminary.html
  80. ChemLuminary Awards
  81. About ACS
  82. Membership
  83. Green Chemistry
  84. Chemical & Laboratory Safety
  85. Donate
  86. Volunteer
  87. Connect with the World's Largest Scientific Community Collaborate and network with like-minded scientists near you and around the world Learn More >
  88. Advance your Career in the Global Economy Find the resources and tools you need to succeed and thrive Learn more >
  89. Promote Excellence in Education Share your passion for chemistry and support the next generation of chemists Learn more >
  90. 2021 ACS Annual Report
  91. ACS takes your privacy seriously
  92. privacy policy
  93. https://www.acs.org/content/acs/en/molecule-of-the-week/archive/e/ethyl-methanesulfonate.html?cid=home_motw
  94. What molecule am I?
  95. View Archive
  96. Explore Membership
  97. Make a Difference
  98. Explore Membership
  99. Make a Difference
  100. Explore Membership
  101. Make a Difference
  102. Donate
  103. Make a Difference
  104. Make a Difference
  105. Facebook
  106. LinkedIn
  107. Twitter
  108. Pinterest
  109. https://www.acs.org/content/acs/en.html
  110. About ACS
  111. Press Room
  112. Governance
  113. Member Benefits
  114. Advocate
  115. Volunteer
  116. Donate
  117. Terms of Use
  118. Security
  119. Privacy
  120. Accessibility
  121. Site Map
  122. Contact
  123. Help
  124. Copyright ©
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://assets.acs.org/v2.0/acs-bootstrap/images/favicon.ico
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.04 seconds.
Page size
The size of the HTML webpage is 14,702.00.
HTTP requests
There are fewer than 14 HTTP requests on the webpage.
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  2. https://assets.acs.org/v2.0/acs-bootstrap/js/vendor/modernizr.js
  3. https://assets.acs.org/acs-bootstrap/v2.0/js/acs.min.js
  4. https://www.acs.org/etc/clientlibs/aem6/cdn/static.min.66c4d214d754c6153426069033c42947.js
  5. https://www.acs.org/etc/clientlibs/acs/cq.jquery.publish.min.4489175b3e0b5ecd2774b233450ac98b.js
  6. https://www.acs.org/etc/clientlibs/acs/cq.shared.publish.min.7946eabe06a8bc0f2666949dcd9d690b.js
  7. https://www.acs.org/etc/clientlibs/acs/personalization.kernel.publish.min.dda089b0056f41e05c479b4816d1573b.js
  8. https://www.acs.org/_Incapsula_Resource?SWJIYLWA=719d34d31c8e3a6e6fffd425f7e032f3&ns=2&cb=203377635
  1. https://assets.acs.org/v3.0/acs-bootstrap/css/acs-bootstrap.css?v=01
  2. https://assets.acs.org/v2.0/aem/css/main.css
  3. https://assets.acs.org/v2.0/aem/css/print.css
  1. https://assets.acs.org/v2.0/acs-bootstrap/images/acs-logo.svg
  2. https://www.acs.org/content/dam/acsorg/molecule/archive-new/e/ethyl-methanesulfonate-teaser.png
  3. https://assets.acs.org/v2.0/acs-bootstrap/images/acs-logo-white.svg
Image format
There are 15 images that are not using the AVIF, WebP format.
  1. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage/image.img.png/1666382844907.png
  2. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage_copy/image.scale.medium.jpg/1588013589214.jpg
  3. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage_copy_copy__511627432/image.img.png/1637175335468.png
  4. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage_copy_copy_1248650693/image.scale.medium.jpg/1615486996549.jpg
  5. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage_copy_copy_788906651/image.img.png/1607525351825.png
  6. https://www.acs.org/content/acs/en/features/megamenu-promo/_jcr_content/articleContent/textimage_copy_copy__1778912246/image.scale.medium.jpg/1637175412998.jpg
  7. https://www.acs.org/content/dam/acsorg/molecule/archive-new/e/ethyl-methanesulfonate-teaser.png
  8. https://www.acs.org/content/acs/en/_jcr_content/mainContent/herocontainer_731744986/containerPar/columnsbootstrap/column0/image.scale.medium.jpg/1621870822711.jpg
  9. https://www.acs.org/content/dam/acsorg/home/stories/headshot01.jpg
  10. https://www.acs.org/content/dam/acsorg/home/stories/headshot03.jpg
  11. https://www.acs.org/content/dam/acsorg/home/stories/headshot02.jpg
  12. https://www.acs.org/content/dam/acsorg/home/stories/headshot04.jpg
  13. https://www.acs.org/content/dam/acsorg/home/stories/headshot05.jpg
  14. https://www.acs.org/content/dam/acsorg/home/stories/headshot06.jpg
  15. https://www.acs.org/content/dam/acsorg/home/stories/headshot07.jpg
JavaScript defer
The are 8 javascript resources without the defer attribute.
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  2. https://assets.acs.org/v2.0/acs-bootstrap/js/vendor/modernizr.js
  3. https://assets.acs.org/acs-bootstrap/v2.0/js/acs.min.js
  4. https://www.acs.org/etc/clientlibs/aem6/cdn/static.min.66c4d214d754c6153426069033c42947.js
  5. https://www.acs.org/etc/clientlibs/acs/cq.jquery.publish.min.4489175b3e0b5ecd2774b233450ac98b.js
  6. https://www.acs.org/etc/clientlibs/acs/cq.shared.publish.min.7946eabe06a8bc0f2666949dcd9d690b.js
  7. https://www.acs.org/etc/clientlibs/acs/personalization.kernel.publish.min.dda089b0056f41e05c479b4816d1573b.js
  8. https://www.acs.org/_Incapsula_Resource?SWJIYLWA=719d34d31c8e3a6e6fffd425f7e032f3&ns=2&cb=203377635
DOM size
The DOM size is optimal.
The HTML file has 718 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://www.acs.org/content/acs/en.html DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
Apache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips Communique/4.3.4
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage contains plaintext emails.
  1. service@acs.org
  2. service@acs.org
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.acs.org/sitemap.xml
      Social
      The webpage has 4 social links.
      Content length
      The webpage has 1,724 words.
      Text to HTML ratio
      The text to HTML ratio is 14%.
      Inline CSS
      The webpage contains inline CSS code.
      1. width: 472px;
      2. margin-top: 0.5em;
      3. width: 260px;
      4. margin-top: 0.5em;
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      13. display: none;
      14. height:auto; width:auto;
      15. display:inline;
      16. height: 450px;
      17. background-color:;
      18. height: 450px; background-color: ;
      19. max-width: none;
      20. height: 450px; background-color: #000000;
      21. max-width: none;
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      24. height: 450px; background-color: #00608F;
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      26. display:inline;
      27. display:inline;
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      29. text-align: left;
      30. margin: 1.0em 0.0px 0.75em;text-align: left;padding-right: 0;
      31. display:inline;
      32. display: none;
      33. display:inline;
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      35. display: none;
      36. display:inline;
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      38. display: none;
      39. display:inline;
      40. line-height: 1.5em;margin-bottom: 1.0em;
      41. display: none;
      42. display:inline;
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      44. display: none;
      45. display:inline;
      46. line-height: 1.5em;margin-bottom: 1.0em;
      47. display: none;
      48. display: none;
      49. display:inline;
      50. margin: 1.0em 0.0px 0.75em;text-align: center;
      51. height:auto; width:auto;
      52. height:auto; width:auto;
      53. display: none;
      Deprecated HTML
      There are no deprecated HTML tags on the webpage.