CHECK GLOSSARY · BLANK-001

Unsafe target=_blank links

In plain words: A page opened with target=_blank can, in older browsers, get access to the page that opened it.

How to fix it

Add rel="noopener noreferrer" to links that open a new tab.

Official sources

• MDN: rel=noopener

Related checks

• DEPR-001: Deprecated HTML tags
• EMAIL-001: Plain-text email address
• DOM-001: Very large page structure
• REFRESH-001: Meta refresh redirect

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