Hola a todos y gracias de antemano por su ayuda, el problema es que tengo un vpscon centos 6 con un sevidor squid instalado, me habia funcionado muy bien desde hace varios meses pero tiene varios dias que algunas paginas no terminan de cargar o si lo hacen quedan toda desconfigurados como solo texto, no soy experto solo me gusta leer los manuales y probar por mi mismo, como estaba un poco desesperado borre el squid del vps y lo volvi a instalar sin modificar nada en la configuracion, solo las reglas de acceso, lo deje http_access allow all para probar, pero sigue el mismo problema, esto es lo que me muestra el log cuando intento entrar a una de las paginas que se queda cargando pero nunca termina de cargar:

1473952658.369 87040 xxx.xxx.xxx.xxx TCP_MISS/200 5537 CONNECT www.google.com:44 3 - DIRECT/216.58.219.100 -
1473952658.370 83690 xxx.xxx.xxx.xxx TCP_MISS/200 26214 CONNECT www.ipoll.com:44 3 - DIRECT/198.232.218.239 -
1473952658.374 88598 xxx.xxx.xxx.xxx TCP_MISS/200 6038 CONNECT www.google.com:44 3 - DIRECT/216.58.219.100 -
1473952658.381 96084 xxx.xxx.xxx.xxx TCP_MISS/200 4298 CONNECT ssl.gstatic.com:4 43 - DIRECT/216.58.219.99 -
1473952658.383 93244 xxx.xxx.xxx.xxx TCP_MISS/200 4298 CONNECT apis.google.com:4 43 - DIRECT/216.58.219.110 -
1473952658.383 88865 xxx.xxx.xxx.xxx TCP_MISS/200 49082 CONNECT www.google.com:4 43 - DIRECT/216.58.219.100 -
1473952658.386 88604 xxx.xxx.xxx.xxx TCP_MISS/200 6118 CONNECT www.google.com:44 3 - DIRECT/216.58.219.100 -
1473952658.387 95008 xxx.xxx.xxx.xxx TCP_MISS/200 4298 CONNECT www.gstatic.com:4 43 - DIRECT/216.58.219.99 -
1473952757.121 4833 xxx.xxx.xxx.xxx TCP_MISS/200 0 CONNECT snippets.cdn.mozilla .net:443 - DIRECT/54.192.82.95 -
1473952769.061 151 xxx.xxx.xxx.xxx TCP_MISS/200 0 CONNECT www.google.com:443 - DIRECT/216.58.219.100 -
1473952826.513 69865 xxx.xxx.xxx.xxx TCP_MISS/200 4421 CONNECT self-repair.mozilla.org:443 - DIRECT/52.43.52.166 -
1473952830.340 19698 xxx.xxx.xxx.xxx TCP_MISS/200 0 CONNECT aus5.mozilla.org:443 - DIRECT/52.89.19.189 -
1473952842.959 59556 xxx.xxx.xxx.xxx TCP_MISS/200 0 CONNECT d3ph8ohza835t6.cloudfront.net:443 - DIRECT/52.85.35.45 -
1473952871.893 63500 xxx.xxx.xxx.xxx TCP_MISS/200 3347 CONNECT incoming.telemetry.mozilla.org:443 - DIRECT/52.89.205.95 -
1473952875.480 121207 xxx.xxx.xxx.xxx TCP_MISS/200 57785 CONNECT safebrowsing.google.com:443 - DIRECT/173.194.212.136 -
1473952891.398 117356 xxx.xxx.xxx.xxx TCP_MISS/200 3938 CONNECT www.google.com:443 - DIRECT/216.58.219.100 -
1473952894.403 118096 xxx.xxx.xxx.xxx TCP_MISS/200 3906 CONNECT www.google.com:443 - DIRECT/216.58.219.100 -
1473952894.410 125640 xxx.xxx.xxx.xxx TCP_MISS/200 91607 CONNECT www.google.com:443 - DIRECT/216.58.219.100 -
1473952895.402 118383 xxx.xxx.xxx.xxx TCP_MISS/200 4546 CONNECT www.google.com:443 - DIRECT/216.58.219.100 -
1473952898.431 118588 xxx.xxx.xxx.xxx TCP_MISS/200 26177 CONNECT www.ipoll.com:443 - DIRECT/198.232.218.239 -
1473952931.813 62492 xxx.xxx.xxx.xxx TCP_MISS/200 3601 CONNECT shavar.services.mozilla.com:443 - DIRECT/54.68.114.20 -
1473952979.413 218956 xxx.xxx.xxx.xxx TCP_MISS/200 3116121 CONNECT safebrowsing-cache.google.com:443 - DIRECT/216.58.219.110 -
1473953668.542 901419 xxx.xxx.xxx.xxx TCP_MISS/200 0 CONNECT normandy.cdn.mozilla.net:443 - DIRECT/54.230.81.74 -



aqui esta la configuracion squid de todas formas por si necesitan verla:


# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machin$

acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT

#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager

# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost

# And finally deny all other access to this proxy
http_access allow all

# Squid normally listens to port 3128
http_port 3128

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid

# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320


#Enter your servers IP here.
acl ip1 myip xxx.xxx.xxx.xxx.
tcp_outgoing_address xxx.xxx.xxx.xxx ip1



las paginas funcionan correctamente sin proxy asi que el problema esta en el squid, gracias a todos, espero alguien me pueda ayudar.