What Could be stripping out adsense ads?

[ncw164x]

For anyone using Wanadoo dial up a large UK ISP is stripping out adsense ads as well as other ads on the page

very naughty

[ritch_b]

Added into the page head content, when viewed over broadband:

<script language="JavaScript">
<!--
function SymError()
{
return true;
}
window.onerror = SymError;
var SymRealWinOpen = window.open;
function SymWinOpen(url, name, attributes)
{
return (new Object());
}
window.open = SymWinOpen;
//-->
</script>

Similar content appears at the very end of the page, after the closing HTML tag.

R.

[encyclo]

That Javascript is from the Norton Internet Security suite (which blocks Adsense and a ton of other things). Are you guys running NIS?

[Dayo_UK]

Looks like Norton Firewall to me.

Beatin to it

[ritch_b]

The broadband machine does, I believe, run NIS, and shall have its settings tinkered with later, to see if these are causing the problems.

If this is the problem, could somebody explain what this added HTML represents? I've seen cases where code has been added to the very beginning or end of a page, but not inside the body of the code itself.

Our own adserver call isn't anything out of the ordinary either, just a normal link wrapped around an image, so I'm a combination of annoyed and curious, as to the whys & hows of this being removed.

R.

[Brett_Tabke]

Trimmed the thread down to the heart of the matter so that we didn't get challenged again by a certain isp ;-)

More on nortons adsense:

[google.com...]

[ritch_b]

Cheers Brett; will have a look through the info.

R.

[Jenstar]

Norton Internet Security has an ad blocking feature that is enabled by default. You need to change the settings to allow AdSense in the program's preferences.

To turn off Nortin Internet Security's ad blocking:

Open NIS, then click Norton AntiSpam on the left side.

From the menu on the left, select Ad Blocking.

Ad blocking options will show up on the right side, click "turn off".

[bumpski]

Somewhat off topic, but.

Norton Internet Security also disables your browser's feature which requests GZIP compressed content from websites, slowing your Internet surfing experience by a factor of 4, for text content! NIS must need to bypass GZIP compression to make their ad stripping job easier, (you lose)! NIS would have to know what the content looked like compressed.

The only way Norton could compensate is to strip out all the ads and images and then make the claim they're speeding up surfing when they actually slow it down up front.

You must turn off NISecurity (not virus protection) entirely to re-enable your broswer's requests for GZIP compressed content. Google's SERPS are GZIP compressed, Webmasterworld is not? For some whacky reason only 6% of Web host's provide GZIP compressed content. It's up to the webmaster to ask for website compression (and be denied).