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Chrome Beta Release, Now Prefetching Faster
engine




msg:4404496
 5:24 pm on Jan 6, 2012 (gmt 0)

Chrome Beta Release Now Prefetching Faster [chrome.blogspot.com]
To get you where you want to go even faster, Chrome will now start loading some web pages in the background, even before you’ve finished typing the URL in the omnibox. If the URL auto-completes to a site you’re very likely to visit, Chrome will begin to prerender the page. Prerendering reduces the time between when you hit Enter and when you see your fully-loaded web page--in some cases, the web page appears instantly.


Security features updated
To help protect you against malicious downloads, Chrome now includes expanded functionality to analyze executable files (such as “.exe” and “.msi” files) that you download. If a file you download is known to be bad, or is hosted on a website that hosts a relatively high percentage of malicious downloads, Chrome will warn you that the file appears to be malicious and that you should discard it. We’re starting small with this initial Beta release, but we’ll be ramping up coverage for more and more malicious files in the coming months. Remember, no technical mechanism can ever protect you completely from malicious downloads. You should always be careful about which files you download and consider the reputation of their source.



Chrome beta [google.com]

 

indybail




msg:4404735
 12:12 pm on Jan 7, 2012 (gmt 0)

Pyschic browsers that are so fast it's spooky.

Staffa




msg:4404747
 1:21 pm on Jan 7, 2012 (gmt 0)

If the URL auto-completes to a site you’re very likely to visit, Chrome will begin to prerender the page.

Chrome can only "guess" what you are likely to visit and if it's not the prerendered page then Chrome just wasted the web site owner's bandwidth for nothing.

Does this Chrome version come with a compensation package for wasted bandwidth ? .... I guess not

Samizdata




msg:4404761
 2:53 pm on Jan 7, 2012 (gmt 0)

The question is, does this beastie send the X-moz prefetch header?

The (now defunct) Google Web Accelerator claimed to take this sensible step:

Prefetch requests include an "x-moz: prefetch" HTTP header. Websites can choose to filter out prefetch requests in their server statistics, as well as reject prefetch requests, which would cause the request to be sent only when a user actually clicks on a link.

Source: [webaccelerator.google.com...]

Does Google no longer allow webmasters to reject prefetch requests?

And if not, why not?

...

J_RaD




msg:4405371
 9:40 pm on Jan 9, 2012 (gmt 0)

wow thats going to put plenty of unneeded network load all over the place.

m0thman




msg:4405384
 10:11 pm on Jan 9, 2012 (gmt 0)

Chrome can only "guess" what you are likely to visit and if it's not the prerendered page then Chrome just wasted the web site owner's bandwidth for nothing.


Not so sure about that. Start typing in www.faceb and you can be sure you'll end up at a lame social networking site. Go for www.bing and you'll get to a search engine that hardly anyone uses!

Demaestro




msg:4405391
 10:41 pm on Jan 9, 2012 (gmt 0)

Hopefully they get it right, I have had nothing but problems with prefetching turned on.

Does anyone like this feature?

daveVk




msg:4405394
 11:14 pm on Jan 9, 2012 (gmt 0)

Go for www.bing and you'll get to a search engine that hardly anyone uses!

And bingo players derailed.

Samizdata




msg:4405425
 12:49 am on Jan 10, 2012 (gmt 0)

Does anyone like this feature?

As a webmaster I naturally despise it as wasteful and unnecessary.

As a user I loathe "features" that try to guess my intentions, especially visible ones that can't be turned off (possibly not the case here).

I would guess that the primary reason for it is so Google can promote their Chrome browser as faster than the competition - while making webmasters pay for the extra speed.

...

Seb7




msg:4405438
 2:12 am on Jan 10, 2012 (gmt 0)

I would rather Chrome (or pretty much most software) concentrate on optimising existing code. Thats the only reason I use it.

Sgt_Kickaxe




msg:4405440
 2:20 am on Jan 10, 2012 (gmt 0)

I would guess that the primary reason for it is so Google can promote their Chrome browser as faster than the competition


exactly my thought and I do not want nor need Google to fetch my websites pages just in case. I take great pride in making my site as fast as it can be already. How do I disable Chrome from being able to do so?

This burns my barnacles actually, coming from the company that does not allow automated calls to load it's pages (e.g. real visitors only).

[edited by: Sgt_Kickaxe at 2:26 am (utc) on Jan 10, 2012]

incrediBILL




msg:4405441
 2:25 am on Jan 10, 2012 (gmt 0)

Prefetching is the kind of genius PhD thinking that can bring a public Wifi system down to it's knees. Got a couple of hundred people sitting in an airport terminal all prefetching away and you'll switch to 3G so fast it'll make your head spin. Then you notice the 3G speed degrading as everyone else in the room has the same bright idea.

Been blocking prefetch for years and not only do I block it, I put instructions on the page to prefetchers on how to disable it if possible because the masses don't even realize it's happening.

I have a perfectly good reason for blocking prefetch, very large dynamic site. A single surfer requesting multiple dynamic pages isn't a problem. But 20-30 concurrent surfers requesting a bunch of pages at once puts a load on the server. Normally 20-30 surfers prefetching wouldn't be so bad except the spiders are crawling the site non-stop as wll. Not only that, prefetch totally screws my ads, it screws with ad stats, it' screws with page view stats, it's chewing up my available bandwidth for the month, bad idea, stupid idea, a totally ill-conceived Google idea, the kind they see to do best these days ;)

It's right up there with no referers from search queries...

[edited by: incrediBILL at 2:29 am (utc) on Jan 10, 2012]

Sgt_Kickaxe




msg:4405442
 2:27 am on Jan 10, 2012 (gmt 0)

share Bill, I need to block this asap too. What's the simplest way of identifying/blocking a chrome pre-load ?

Until Google pays me to use my site in this manner I have no intention of allowing it.

tictoc




msg:4405483
 6:56 am on Jan 10, 2012 (gmt 0)

I hope this will not make their huge ad popup at the bottom of the browser like they do with people who have their toolbar. Shady and intrusive of G to do that! Disgusts me they would intrude on a webpage or blog like that.

loner




msg:4405501
 9:36 am on Jan 10, 2012 (gmt 0)

The price of not being Pandalized.

rollinj




msg:4405510
 11:20 am on Jan 10, 2012 (gmt 0)

I'm pretty sure Google is going to work us all out of a job in about... 3 years time.

Need faster load times? Google offers them.

Need split testing on your webpage? Google offers it.

Need a simpe email domain setup? Google offers it.

Pretty soon they're going to be building webpages for free and placing adsense where they please.

dvduval




msg:4406398
 3:27 am on Jan 13, 2012 (gmt 0)

This is google's contribution to green hosting I take it?

What if there is a natural disaster in Timbuktu, and as people start typing in Timbuktu searches, google contributes to using the valuable remaining resources in the affected place?

koan




msg:4407520
 2:05 am on Jan 17, 2012 (gmt 0)

That's the code I put in all my web sites to block any kind of pre-fetching nonsense from Google and Mozilla, not sure if it's still up to date though:


RewriteCond %{HTTP:X-Moz} ^prefetch$ [OR]
RewriteCond %{HTTP:X-Purpose} ^instant$
RewriteRule .* - [F]

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