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This tab shows pages that do not comply with W3C standards.

FailureW3C HTML/XHTML Validation - Some pages fail validation.    
FailureW3C CSS Validation - Some pages fail validation.    
FailureW3C Style Guide - Issues found.    
SuccessW3C Deprecated Features - No issues found.    
 
PriorityURL / Description Line
View Pages  Critical Character data is not allowed here.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 10
View Pages  Critical Document type does not allow element "BODY" here.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 71
View Pages  Critical Document type does not allow element "DIV" here; missing one of "APPLET", "OBJECT", "MAP", "IFRAME", "BUTTON" start-tag.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 330
View Pages  Critical Document type does not allow element "LI" here; missing one of "UL", "OL", "DIR", "MENU" start-tag.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 409 410
https://www.healthcare.gov/marketplace/global/en_US/registration 15 17 18 19 20 ...
View Pages  Critical Document type does not allow element "META" here.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 13 14 42 47 48 ...
View Pages  Critical Document type does not allow element "STYLE" here.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 26 421
View Pages  Critical Duplicate specification of attribute "ALT".HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 122
View Pages  Critical Duplicate specification of attribute "HREF".HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 135
View Pages  Critical Duplicate specification of attribute "TARGET".HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 260 261
View Pages  Critical End tag for "DIV" omitted, but its declaration does not permit this.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 330
View Pages  Critical End tag for "I" omitted, but its declaration does not permit this.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 330
View Pages  Critical End tag for "SCRIPT" omitted, but its declaration does not permit this.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 271
View Pages  Critical End tag for element "DIV" which is not open.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 497
View Pages  Critical End tag for element "HEAD" which is not open.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 70
View Pages  Critical End tag for element "SCRIPT" which is not open.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 417
View Pages  Critical No document type declaration; implying "<!DOCTYPE HTML SYSTEM>".HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 6
View Pages  Critical Required attribute "CONTENT" not specified.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 10 53
View Pages  Critical Required attribute "TYPE" not specified.HTML Validation
https://www.healthcare.gov/marketplace/global/en_US/registration 26 40 41 95 421 ...
View Pages  Critical'&' did not start a character reference. (& probably should have been escaped as &amp;.)HTML5
https://www.healthcare.gov/all-topics 602
https://www.healthcare.gov/families 621 688 736
https://www.healthcare.gov/marketplace/individual 1570 1635 1700
https://www.healthcare.gov/small-businesses 616 683 731
View Pages  CriticalAttribute 'ontent' not allowed on element.HTML5
https://www.healthcare.gov/ 91
https://www.healthcare.gov/families 89
https://www.healthcare.gov/marketplace/individual 89
https://www.healthcare.gov/small-businesses 89
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalAttribute 'src' not allowed on element.HTML5
https://www.healthcare.gov/ 127
https://www.healthcare.gov/families 125
https://www.healthcare.gov/marketplace/individual 125
https://www.healthcare.gov/small-businesses 125
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalBad value 'image' for attribute 'type'.HTML5
https://www.healthcare.gov/ 127
https://www.healthcare.gov/families 125
https://www.healthcare.gov/marketplace/individual 125
https://www.healthcare.gov/small-businesses 125
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalBad value 'publisher' for attribute 'rel'.HTML5
The string 'publisher' is not a registered keyword or absolute URL.
https://www.healthcare.gov/
 14
The string 'publisher' is not a registered keyword or absolute URL.
https://www.healthcare.gov/families
 12
The string 'publisher' is not a registered keyword or absolute URL.
https://www.healthcare.gov/marketplace/individual
 12
The string 'publisher' is not a registered keyword or absolute URL.
https://www.healthcare.gov/small-businesses
 12
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalBad value 'X-UA-Compatible' for attribute 'http-equiv'.HTML5
https://www.healthcare.gov/ 9
https://www.healthcare.gov/families 9
https://www.healthcare.gov/marketplace/individual 9
https://www.healthcare.gov/small-businesses 9
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalDuplicate attribute 'alt'.HTML5
https://www.healthcare.gov/ 267
https://www.healthcare.gov/families 265
https://www.healthcare.gov/marketplace/individual 265
https://www.healthcare.gov/small-businesses 265
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalDuplicate attribute 'href'.HTML5
https://www.healthcare.gov/ 284
https://www.healthcare.gov/families 282
https://www.healthcare.gov/marketplace/individual 282
https://www.healthcare.gov/small-businesses 282
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalDuplicate attribute 'target'.HTML5
https://www.healthcare.gov/ 1150 1152
https://www.healthcare.gov/families 1399 1401
https://www.healthcare.gov/marketplace/individual 2359 2361
https://www.healthcare.gov/small-businesses 1398 1400
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalDuplicate attribute 'width'.HTML5
https://www.healthcare.gov/families 736
https://www.healthcare.gov/small-businesses 731
View Pages  CriticalDuplicate ID 'state-dropdown'.HTML5
https://www.healthcare.gov/marketplace/individual 794
View Pages  CriticalElement 'li' not allowed as child element in this context.HTML5
https://www.healthcare.gov/ 379
https://www.healthcare.gov/families 377
https://www.healthcare.gov/marketplace/individual 376
https://www.healthcare.gov/small-businesses 377
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalElement 'meta' is missing one or more required attributes.HTML5
Missing 'content' 'property'
https://www.healthcare.gov/
 91
Missing 'content' 'property'
https://www.healthcare.gov/families
 89
Missing 'content' 'property'
https://www.healthcare.gov/marketplace/individual
 89
Missing 'content' 'property'
https://www.healthcare.gov/small-businesses
 89
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalNo 'li' element in scope but a 'li' end tag seen.HTML5
https://www.healthcare.gov/ 819 1046
https://www.healthcare.gov/families 1068 1295
https://www.healthcare.gov/marketplace/individual 2028 2255
https://www.healthcare.gov/small-businesses 1067 1294
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  CriticalNo 'p' element in scope but a 'p' end tag seen.HTML5
https://www.healthcare.gov/families 750
https://www.healthcare.gov/small-businesses 746
View Pages  CriticalReference to non-existent ID 'signup-hero'.HTML5
https://www.healthcare.gov/ 624
View Pages  CriticalStray end tag 'div'.HTML5
https://www.healthcare.gov/families 1872
https://www.healthcare.gov/small-businesses 1871
View Pages  CriticalThe 'allowtransparency' attribute on the 'iframe' element is obsolete. Use CSS instead.HTML5
https://www.healthcare.gov/all-topics 596 599
https://www.healthcare.gov/families 615 618 682 685
https://www.healthcare.gov/marketplace/individual 1564 1567 1629 1632 1694 ...
https://www.healthcare.gov/small-businesses 610 613 677 680
View Pages  CriticalThe 'frameborder' attribute on the 'iframe' element is obsolete. Use CSS instead.HTML5
https://www.healthcare.gov/all-topics 596 599
https://www.healthcare.gov/families 615 618 682 685 736
https://www.healthcare.gov/marketplace/individual 1564 1567 1629 1632 1694 ...
https://www.healthcare.gov/small-businesses 610 613 677 680 731
View Pages  CriticalThe 'scrolling' attribute on the 'iframe' element is obsolete. Use CSS instead.HTML5
https://www.healthcare.gov/all-topics 596
https://www.healthcare.gov/families 615 682
https://www.healthcare.gov/marketplace/individual 1564 1629 1694
https://www.healthcare.gov/small-businesses 610 677
View Pages  Very Important There is no attribute "CHARSET".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 10
View Pages  Very Important There is no attribute "DATA-PARENT".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 330
View Pages  Very Important There is no attribute "DATA-TOGGLE".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 330
View Pages  Very Important There is no attribute "ONTENT".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 53
View Pages  Very Important There is no attribute "PROPERTY".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 47
View Pages  Very Important There is no attribute "ROLE".HTML Validation
This happens when the version of HTML used on this page doesn't support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn't supported by some HTML versions. For example, HTML 4 DOCTYPEs don't allow HTML 5 attributes and Strict DOCTYPEs don't allow stylistic attributes which were present in earlier versions of HTML.
https://www.healthcare.gov/marketplace/global/en_US/registration 129
View Pages  Very ImportantNo DOCTYPE found! Checking with default HTML or XHTML document type.HTML Validation
No DOCTYPE Declaration could be found or recognized in this document. This generally means that the document is not declaring its Document Type at the top. It can also mean that the DOCTYPE declaration contains a spelling error, or that it is not using the correct syntax.
https://www.healthcare.gov/marketplace/global/en_US/registration 6
View Pages  Very ImportantTitle is longer than 64 characters. W3C recommends titles are no longer than 64 characters.W3C Style Guide
https://www.healthcare.gov/ 6
https://www.healthcare.gov/all-topics 6
View Pages  ImportantBad value 'content-type' for attribute 'name'.HTML5
Meta name 'content-type' is not registered.
https://www.healthcare.gov/
 78
Meta name 'content-type' is not registered.
https://www.healthcare.gov/families
 76
Meta name 'content-type' is not registered.
https://www.healthcare.gov/marketplace/individual
 76
Meta name 'content-type' is not registered.
https://www.healthcare.gov/small-businesses
 76
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  ImportantBad value 'search-title' for attribute 'name'.HTML5
Meta name 'search-title' is not registered.
https://www.healthcare.gov/
 77
Meta name 'search-title' is not registered.
https://www.healthcare.gov/families
 75
Meta name 'search-title' is not registered.
https://www.healthcare.gov/marketplace/individual
 75
Meta name 'search-title' is not registered.
https://www.healthcare.gov/small-businesses
 75
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  ImportantProperty -moz-border-radius-topleft is vendor specific.CSS Validation
Properties prefixed by a dash or underscore are vendor specific and only work on one browser engine.
https://www.healthcare.gov/all-topics 3406
https://www.healthcare.gov/families 1811
https://www.healthcare.gov/marketplace/individual 2771
https://www.healthcare.gov/small-businesses 1810
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  ImportantProperty -moz-border-radius-topright is vendor specific.CSS Validation
Properties prefixed by a dash or underscore are vendor specific and only work on one browser engine.
https://www.healthcare.gov/all-topics 3407
https://www.healthcare.gov/families 1812
https://www.healthcare.gov/marketplace/individual 2772
https://www.healthcare.gov/small-businesses 1811
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  ImportantProperty -webkit-border-top-left-radius is vendor specific.CSS Validation
Properties prefixed by a dash or underscore are vendor specific and only work on one browser engine.
https://www.healthcare.gov/all-topics 3404
https://www.healthcare.gov/families 1809
https://www.healthcare.gov/marketplace/individual 2769
https://www.healthcare.gov/small-businesses 1808
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
View Pages  ImportantProperty -webkit-border-top-right-radius is vendor specific.CSS Validation
Properties prefixed by a dash or underscore are vendor specific and only work on one browser engine.
https://www.healthcare.gov/all-topics 3405
https://www.healthcare.gov/families 1810
https://www.healthcare.gov/marketplace/individual 2770
https://www.healthcare.gov/small-businesses 1809
This issue was found on another 1 pages. The evaluation version is limited to showing issues on 4 pages.   
Expand All53 issues on 6 pages
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