Slow loading of websites

Created:

2016-11-16 13:06:19 UTC

Modified:

2017-04-24 11:03:45 UTC

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Slow loading of websites

Applicable to:

  • Plesk 12.5 for Linux
  • Plesk 11.0 for Linux
  • Plesk 12.0 for Linux
  • Plesk 12.5 for Windows

Symptoms

A web page is loading very slow, it takes about a minute to open a page.

Cause

Specified in the /etc/resolv.conf name server does not work correctly - it is not possible to resolve addresses on the Internet. When website is trying to get resources from other online services (e.g. google analytics) it takes too much time.

# cat /etc/resolv.conf
nameserver 10.39.1.1

# nslookup google.com 10.39.1.1
;; reply from unexpected source: 10.39.10.10#47019, expected 10.39.1.1#53
;; reply from unexpected source: 10.39.10.10#47019, expected 10.39.1.1#53
;; reply from unexpected source: 10.39.10.10#47019, expected 10.39.1.1#53
;; connection timed out; trying next origin
;; reply from unexpected source: 10.39.10.10#56507, expected 10.39.1.1#53
;; connection timed out; no servers could be reached

Resolution

Specify another name server in /etc/resolv.conf , for example use one of Google Public DNS IP addresses:

# cat /etc/resolv.conf
nameserver 8.8.8.8
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