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Deprecated HTML Tags Test

What is it?

Check if your webpage is using old, deprecated HTML tags. These tags will eventually lose browser support and your web pages may render incorrectly as browsers drop support for these tags.

Pass rate:

  • Top 100 websites: 94%
  • All websites: 92%
Pass rates of Top 100 US websites
2021

99%

2022

92%

2023

94%

100

75

50

25

0

How do I fix it ?

In order to pass this test you must identify into your code all deprecated HTML tags listed above and replace them with proper tags or CSS rules. Some examples are given below:

  • for <applet> tag, the equivalent tag is <object>
  • for <center> tag, the alternative CSS property is text-align
  • for <font> tag, the alternative CSS properties are font-family and font-size
  • for <s>, <strike> and <u> tags, the alternative CSS property is text-decoration
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