4.0 (compatible;). Usually, when I

I've been getting an increasing number of requests (currently at around 100K per day) with user agent Mozilla/4.0 (compatible;). Usually, when I see a user-agent or requests that look suspicious I do my research (IP lookups) and block them as needed. However, this one I can't make my mind up about. Looking at the IP's they are from companies like Bosch and Audi, in Germany. I read that some proxy servers (could be company proxies) can use this user-agent. I don't want to block people at Bosch or Audi from being able to get to my site.

Anyone's got any experience with this user agent? Can anyone confirm if this may be indeed a company proxy? Or is this plain-o' spam?

Thanks

10.01% popularity Vote Up Vote Down

: An alternate way to access adsense I haven't accessed adsense in a long time until just now. I was able to login however I could not see my earnings, nor do anything to my account. I tested

@Nickens628

Posted in: #Browsers #BrowserSupport #CrossBrowser #Google #GoogleAdsense

1 Comments

: Choosing SSL certificates in the UK Recently Google announced that 50% of websites are secure. They have also been rumbling about demoting non-secure sites in the search rankings if they're not

@Nickens628

Posted in: #Https

1 Comments

: Does CloudFlare's analytics support download statistics on individual files? I'm planning on using CloudFlare with our website but I need to make sure that I can still provide download statistics

@Nickens628

Posted in: #Analytics #Cloudflare #Download

1 Comments

: Anything on the Internet that causes undesired behavior and annoys the average user. For example, accessing a website that displays pop-ups on the screen in the same area a user was trying

@Nickens628

0 Comments

Login to post a comment!

1 Comments

Sorted by latest first Latest Oldest Best

@Megan663

It can be a valid user-agent. runlevelsix says this on ServerFault:

According to several resources (such as this entry), these are requests used by proxy tools that employ pre-fetching strategies (they go and download all of the pages that are linked from the page a user is visiting in order to cache them for fast retrieval). Blue Coat, Verizon, LookSmart, and others have all been found at one time or another to use that UserAgent in their tools.

Also, according to Microsoft, some versions of Internet Explorer, for historical reasons, have used variations of the Mozilla/4.0 (compatible) UserAgent. See here for more details.

fahadsadah adds:

Actually, all versions of Internet Exploder up to IE8 identify as Mozilla/4.0 (compatible), but there's usually more within the brackets, like Trident/OS version numbers. IE9 identifies as 5.0 compatible, like all other modern browsers

10% popularity Vote Up Vote Down

Feed

: Is "Mozilla/4.0 (compatible;)" a valid user-agent? I've been getting an increasing number of requests (currently at around 100K per day) with user agent Mozilla/4.0 (compatible;). Usually, when I

More posts by @Nickens628

: An alternate way to access adsense I haven't accessed adsense in a long time until just now. I was able to login however I could not see my earnings, nor do anything to my account. I tested

: Choosing SSL certificates in the UK Recently Google announced that 50% of websites are secure. They have also been rumbling about demoting non-secure sites in the search rankings if they're not

: Does CloudFlare's analytics support download statistics on individual files? I'm planning on using CloudFlare with our website but I need to make sure that I can still provide download statistics

: Anything on the Internet that causes undesired behavior and annoys the average user. For example, accessing a website that displays pop-ups on the screen in the same area a user was trying

Login to post a comment!

1 Comments

Back to top | Use Dark Theme