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I cannot access some really legit sites on my internet connection all of a sudden. Is there a way to tell if the ISP is blocking them? I have tried turning-off my firewall completely and it is still blocking sites like speedtest.net The funny part is I am able ping and tracert to those website. Just loading them in the browser is not working at all. It just keeps trying to access and then times-out the request. Are there any diagnostic tools etc that I can use to figure this out? UPDATE: No blocking software. speedtest.net is one website. If I use a anonymizing software like the Tor Browser, then the sites are opening fine.

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  • Which browsers did you tried ? What did the browsers showed as error ?
    – TomJ
    Apr 8, 2014 at 2:48
  • All major browsers - IE, Chrome, Firefox. All browsers just time-out.
    – aseem
    Apr 8, 2014 at 2:53
  • Did you checked whether any softwares or extensions block internet ? Which sites get blocked ?
    – TomJ
    Apr 8, 2014 at 2:59
  • Adding my response to the original question above.
    – aseem
    Apr 8, 2014 at 3:04
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    There is a file named 'hosts' in C:/Windows/system32/drivers/etc. Check whether your blocked site names are added after '127.0.0.1'. If it is added, just erase those site names.
    – TomJ
    Apr 8, 2014 at 3:09

2 Answers 2

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Did you check your pc with any anti-malware and/or anti-spyware and/or adware tracker?

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Are you the only one using your desktop? There is a file named hosts in C:/Windows/system32/drivers/etc. Check whether your blocked site names are added after '//127.0.0.1'. Just like:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#   127.0.0.1       localhost
#   ::1             localhost

//127.0.0.1 www.facebook.com
//127.0.0.1 facebook.com
//127.0.0.1 www.twitter.com
//127.0.0.1 twitter.com
//127.0.0.1 www.youtube.com
//127.0.0.1 youtube.com
//127.0.0.1 www.instagram.com
//127.0.0.1 instagram.com

This sample is used in my little office since we don't have enough budget yet to buy a firewall.

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  • Welcome to Super User! I've edited your answer. To put things in code markdown, indent it by 4 spaces. I'm guessing the ** that you put around the list of URL's were only meant to put things in boldface? In that case, you should remove them now, as they are not part of the actual file contents. You can edit your answer to do this. Anyway, thank you for contributing! Jan 11, 2017 at 9:10

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