Duplicates in joomla due to utm tags?

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a91050513962020-09-30 23:31:14

Joomla

a9105051396, 2020-09-30 23:31:14

Duplicates appeared on Yandex webmaster due to utm tags.
Is it enough to just specify canonical for all pages? Or is there something else to be done?

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Alexey Gnevyshev, 2020-10-01
@iResource

Specifying rel canonical is a good option.
But even better is to supplement this with rules in robots.txt, for example:

Disallow: /*?
Allow: /*.css?
Allow: /*.js?

We do not allow all pages with url parameters to be indexed, but at the same time we allow css and js with versions.
Or you can disable specific parameters, for example:
Disallow: /*?*utm_source