Does Google add parameters to the URL parameters in webmaster tools/

[merch_zzounds]

I am seeing new parameters added (and sometimes removed) from the URL Parameter tool.  Is there anything that would add parameters to the tool?  Or does it have to be someone internally?

FYI - They always have no date in the configured column, no effect set, and crawl is set to Let Google decide.

[merch_zzounds]

Thank You Chris

[DIGIHOUSE]

Hi Jim,

just leave them alone. There should be no impact on your rankings.

Chris

[merch_zzounds]

Thanks again Chris,

If these items are not parameters, should I do something to them?  Or just leave them alone.

[DIGIHOUSE]

Hi Jim,

i think Google adds ALL Parameter it finds.
You don't have to manually add these.

Chris

[merch_zzounds]

Thanks for the quick response Chris,

I understand what the parameters are for,

My issue is that I am seeing new parameters in the list that I did not enter.  Will Google insert what it thinks are new parameters it finds?

Or does this have to be caused by someone keying these who has access to the Webmaster account?

Jim

[DIGIHOUSE]

Hi,

Infos can be found here:

https://support.google.com/webmasters/answer/6080548?rd=1&hl=en

geetZ

Chris