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Re: SItes inaccessible

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Handsome Jack <jack@handsome.com> wrote:
> For some weeks now SWMBO has had difficulty accessing certain shopping 
> sites, notably Argos and Next. The error she gets ("Access denied blah 
> blah") only comes up fairly deep into the chain of clicks, right on the 
> spec page of a particular product e.g
> 
> https://www.argos.co.uk/product/9782525?
> clickSR=slp:term:shop%20all%20big%20red%20floorcare%20offers:1:94:1
> 
> Her Firefox says it is up to date, version 115.39Oesr(64-bit), on Windows 
> 7 Pro.

Same here with FF 140.15.0esr on Linux. I've seen the same thing
before with the "https://errors.edgesuite.net/" link at the end
when failing to access other sites. It's a system to detect website
scraper bots based on "browser fingerprinting", so something about
your request looks like it isn't coming from a normal user. That
something could be your ISP, your browser configuration, your OS,
or your computer hardware specs.

A site I used to regularly access is www.gumtree.com.au, but for
well over a year it's been blocking me with similar "Access Denied"
pages. I reported it to their support, with a note of my up-to-date
browser version, and just got the stock response that I should
update my browser. Actually it got worse since I upgraded from FF
v115 to v140, before that it would sometimes work if I reloaded the
page, but in v140 it never works.

However the exact same FF version running on another Linux PC could
still access the site fine. I eventually determined that the issue
was that the working PC was using hardware graphics acceleration
for WebGL, but PCs using software WebGL rendering or no 3D graphics
support at all get the "Access Denied" page. This is even though
the website doesn't use WebGL for any of its content - but they're
somehow getting the GPU specs, and using them to conclude that any
computer which can't do WebGL on a hardware GPU must be a server
running a web scraper rather than being used by a human.

If your PC has an old GPU which can't do WebGL, or just doesn't
have drivers for it installed, you might have the same problem.
However like I say there are a lot of possible "fingerprints" that
might offend them, and you can only find out which is your issue
(or really their issue with you) by tedious trial and error.

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SItes inaccessible Handsome Jack <jack@handsome.com> - 2026-08-31 16:25 +0000
  Re: SItes inaccessible Andy Burns <usenet@andyburns.uk> - 2026-08-31 17:50 +0100
    Re: SItes inaccessible Handsome Jack <jack@handsome.com> - 2026-08-31 19:30 +0000
      Re: SItes inaccessible Andy Burns <usenet@andyburns.uk> - 2026-08-31 20:37 +0100
      Re: SItes inaccessible "R.Wieser" <address@is.invalid> - 2026-08-31 22:17 +0200
    Re: SItes inaccessible John <Man@the.keyboard> - 2026-09-01 14:35 +0100
      Re: SItes inaccessible John <Man@the.keyboard> - 2026-09-01 14:46 +0100
        Re: SItes inaccessible Andy Burns <usenet@andyburns.uk> - 2026-09-01 15:11 +0100
          Re: SItes inaccessible John <Man@the.keyboard> - 2026-09-03 13:56 +0100
        Re: SItes inaccessible Daniel70 <daniel47@nomail.afraid.org> - 2026-09-02 19:01 +1000
          Re: SItes inaccessible John <Man@the.keyboard> - 2026-09-03 13:35 +0100
      Re: Sites inaccessible Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-06 04:15 +0000
        Re: Sites inaccessible John <Man@the.keyboard> - 2026-09-06 12:28 +0100
  Re: SItes inaccessible Nobody <jock@soccer.com> - 2026-08-31 10:31 -0700
  Re: SItes inaccessible Paul in Houston TX <Paul@Houston.Texas> - 2026-08-31 14:50 -0500
  Re: SItes inaccessible not@telling.you.invalid (Computer Nerd Kev) - 2026-09-02 09:04 +1000
    Re: SItes inaccessible John <Man@the.keyboard> - 2026-09-03 13:48 +0100

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