Sometimes you faced the problem that some sites are not getting open in your PC as today I was unable to open my blogspot pages. To fix it first I cleared the cookies , delete the temp files, then I tried to open the page in different browser still problem persist.
After using several browser I ping the google site using cmd prompt it was working fine then I ping the blogspot ..didnt get any reply that confirm me that issue is related to DNS server . So I set open DNS server and everything started working properly.
List of Some DNS Server
Primary 8.8.8.8 Secondary 8.8.4.4
Primary 208.67.222.222 Secondary 208.67.222.220
Sometimes Issue may be related to malware or hostfile
default host file :
========================================================================
# 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
========================================================================
copy this in notepad and replace it with existing host file
path for host file is