mozilla/4.0 (compatible; cerberian drtrs version-3.1-build-16)

Again!

[DoppyNL]

Also see:
[webmasterworld.com...]
(wich is closed and I can't reply anymore).

Lately I've been spotting these UA's:
mozilla/4.0 (compatible; cerberian drtrs version-3.1-build-16) (3 different IP's; 75 requests total)
mozilla/4.0 (compatible; cerberian drtrs version-3.1-build-17) (1 IP; 27 requests total)
mozilla/4.0 (compatible; cerberian drtrs version-3.1-build-18) (1 IP; 2 requests so far).

ALL requests made by this UA were done within several minutes (most of the time a couple of seconds) after a normal visitor requested that exact uri.

I'm suspecting it is related to some spyware installed on the computer of the person in question.
So far I've traced 1 specific visitor wich has made at least 3 visits to a site of mine, all requests were repeated by this UA.

I doubt it has to do with proxy's or firewalls as 99% of my visitors are from the Netherlands and those requests are not from NL.

Any thoughts?

[fiestagirl]

Cerberian is a content filtering/censoring company. If you do a search for it on GG you'll find loads of info.

[wilderness]

Doppy,
This IP and UA is also Ceberian:

[webmasterworld.com...]

"Believe it or Not"

[jdMorgan]

Let's be clear on Cerberian and some others, such as Netsweeper.

Cerberian and these others are internet content-filtering services. When a visitor is using (or some might say "subjected to") these filtering services, either by "parental-control" subscription with their ISP, or by corporate edict at their place of employment, the service's server will check your pages before or during the user's visit.

The IP address of the human visitor will probably not be related in any way to the IP address that resolves to the content filtering service; They will only be somewhat coincident in time of access.

If you block this type of user-agent, then there is a good chance that people browsing with parental controls turned on or browsing at work will not be able to view your site.

Each webmaster has to decide what that might mean to his/her individual site.

Jim

[wilderness]

Jim and fiesta,
If you do a google on Apsecure Technologies?
You'll find that their services and products offer far more than content filtering :)

[DoppyNL]

Ah, I see.

I didn't do a search for cerberian; and since the requests came from outside the netherlands and I don't expect much visitors from outside the netherlands (let alone the other side of the globe) I was a bit suspicious.

But since it seems to be a filtering bot for parentol control and stuff like that there is no problem at all :).

Perhaps they should post the complete ID from their crawler on their site with some info and a link to that in their useragent. Might be more clear for webmasters.