Unrecognized or missing DOCTYPE declaration; validation continuing as HTML 3.2

Classification

Validator

Validator version

Error message type

JHOVE

1.32.1

File format

Version

Specification

Description

Location

text/html

(:unav)

corpus

text/html

(:unav)

corpus

application/warc

(:unav)

corpus

application/warc

(:unav)

corpus

Analyses

Possible solutions

Output example

Validator returned error.
<?xml version="1.0" encoding="UTF-8"?>
<jhove xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schema.openpreservation.org/ois/xml/ns/jhove" xsi:schemaLocation="http://schema.openpreservation.org/ois/xml/ns/jhove https://schema.openpreservation.org/ois/xml/xsd/jhove/1.9/jhove.xsd" name="Jhove" release="1.32.1" date="2025-02-06">
 <date>2025-10-29T17:26:02+02:00</date>
 <repInfo uri="/corpus/file-scraper/tests/data/text_html/invalid_4.01_nodoctype.html">
  <reportingModule release="1.4.4" date="2024-08-22">HTML-hul</reportingModule>
  <lastModified>2025-10-28T08:43:04+02:00</lastModified>
  <size>91</size>
  <format>HTML</format>
  <status>Well-Formed, but not valid</status>
  <messages>
   <message severity="error" id="HTML-HUL-16" infoLink="https://github.com/openpreserve/jhove/wiki/HTML-hul-Messages#html-hul-16">Unrecognized or missing DOCTYPE declaration; validation continuing as HTML 3.2</message>
   <message severity="info" id="HTML-HUL-22" infoLink="https://github.com/openpreserve/jhove/wiki/HTML-hul-Messages#html-hul-22">This HTML version is currently not supported, falling back to HTML 3.2</message>
  </messages>
  <mimeType>text/html</mimeType>
  <properties>
   <property>
    <name>HTMLMetadata</name>
    <values arity="List" type="Property">
    <property>
     <name>Title</name>
     <values arity="Scalar" type="String">
      <value>Otsikko
</value>
     </values>
    </property>
    </values>
   </property>
  </properties>
 </repInfo>
</jhove>

MIME type (:unav) with version (:unav) is not supported.
Found encoding declaration (:unav) from the file /corpus/file-scraper/tests/data/text_html/invalid_4.01_nodoctype.html, but UTF-8 was expected.

Notes on the error