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Slow loading specific web page

Hi there,

I have a weird problem with loading time on a specific site (http://www.mednet.gr).

The site makes a php GET call for a gzipped css file (http://www.mednet.gr/application/css.php?request=application/themes/mednet/theme.css&c=46) which takes about a minute to complete.

The weird thing is that I get this delay only through Sophos! Not with a direct connection or an obsolete TMG Proxy server that i tried.

I bypassed any checks on the site and used the browser developer tools to verify that I get no error on loading.

Bypass content scanning is enabled (if that makes any difference).

Any ideas??

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0 Vels over 7 years ago

Hi,

Just tried running it thru the filter here, and it loads within 2 seconds.

I has a few errors and resources not found along with a certificate error, but nothing that major.

Tried with and without filter having no issues, so I can't replicate the behavior.

Any errors in the web protection log regarding the css url ?

What is your setting in : Web Protection -> Filtering Options -> Misc ; Web Caching ?
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0 IliasTsoukalis over 7 years ago in reply to Vels

No errors in web protection log:
dstip="144.76.186.178" user="" group="" ad_domain="" statuscode="200" cached="0" profile="REF_DefaultHTTPProfile (Default Web Filter Profile)" filteraction="REF_DefaultHTTPCFFBlockAction (Default content filter block action)" size="23080" request="0x1817d200" url="www.mednet.gr/.../css.php referer="" error="" authtime="0" dnstime="104817" cattime="0" avscantime="0" fullreqtime="246139" device="0" auth="2" ua="Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:51.0) Gecko/20100101 Firefox/51.0" exceptions="auth,content,url" content-type="text/css"

Web Caching is disabled since I had an other issue with enabling it (https://community.sophos.com/products/unified-threat-management/f/hardware-installation-up2date-licensing/76131/sg330-unresponsive-for-a-couple-of-minutes-with-postgres-4267-error)
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0 Vels over 7 years ago in reply to IliasTsoukalis

The only thing that strikes me here is that the request for the css only takes about 0,24 seconds to finish, even dns does not look alarming.

The time in the logs are microseconds.

So... if the proxy fetches in 0,24 seconds, where does the remaining 59 seconds go ? ( time between proxy and client ? or ? )

Is it the same with all clients behind the proxy ?

Sorry, I dont have any bright ideas at the moment.

By the way, I use cache on the proxy - not because of bandwidth but because of speed.
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0 Vels over 7 years ago in reply to IliasTsoukalis

The only thing that strikes me here is that the request for the css only takes about 0,24 seconds to finish, even dns does not look alarming.

The time in the logs are microseconds.

So... if the proxy fetches in 0,24 seconds, where does the remaining 59 seconds go ? ( time between proxy and client ? or ? )

Is it the same with all clients behind the proxy ?

Sorry, I dont have any bright ideas at the moment.

By the way, I use cache on the proxy - not because of bandwidth but because of speed.
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