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DNS Server

Muttley62
Grafter
Posts: 130
Registered: ‎22-03-2013

DNS Server

Can someone tell me if I would be better off using a third party DNS server such as google instead of plusnet, and what the pros and cons are?
4 REPLIES
Community Veteran
Posts: 2,286
Thanks: 109
Fixes: 4
Registered: ‎18-02-2013

Re: DNS Server

It's not that simple to advise not knowing what you wish to achieve or why you feel you need to use other dns servers, can you expand any further as to why and we then may be in a better position to advise you further.
Muttley62
Grafter
Posts: 130
Registered: ‎22-03-2013

Re: DNS Server

I've had problems with web pages being slow to load and thought that perhaps changing DNS might help.
Community Veteran
Posts: 2,286
Thanks: 109
Fixes: 4
Registered: ‎18-02-2013

Re: DNS Server

From my side plusnet dns is ok atm and has been now for about a week, but i mostly use opendns, i'll post those for you below with figures of how other dns servers are performing for me as well.
[tt]
Nameserver              Response Time (ms)                       
                        min/avg/max/stdev/retries

212.159.6.9            18.41/19.16/19.79/0.46/0  plusnet
212.159.6.10            18.65/20.50/23.16/2.01/0  plusnet
208.67.222.222          18.21/18.29/18.44/0.09/0  opendns
208.67.222.220          17.95/18.13/18.39/0.16/0  opendns
208.67.222.123          17.91/18.31/18.57/0.22/0  opendns-family-safe
208.67.220.123          17.75/18.30/18.56/0.30/0  opendns-family-safe
8.8.8.8                23.66/24.14/24.77/0.44/0  google
8.8.4.4                17.98/18.14/18.54/0.21/0  google
4.2.2.1                17.86/36.94/111.35/37.21/0 level3
4.2.2.6                17.90/18.05/18.34/0.15/0  level3
[/tt]
So from the top, plusnet dns is ok ish as expected because they dont have a MASSIVE server farm to rely on. Next is opendns and opendns family-safe those almost always give me great service unless the routing changes, which happens here and there, but these guys do have MASSIVE server farms so are mostly reliable and fast. Next is google, same thing as opendns really but not a personal choice for me.
And last is level3, again massive resource but i've found for me at the moment as you may see that the figures are slightly elevated and have a spike thing going with lots of failed requests, so they would not be beneficial for me to use.
Some people use this little program as well to find servers, as well as test your own if you have them. https://www.grc.com/dns/benchmark.htm however i do find it very harsh on my router which tends to flood the router for some reason, and in doing so gives me false information.
So i prefer to use ns_bench which is a none gui program which gives you the raw figures you see above. Or for quick tests i would use another program called Dig.
Hope this helps you choose some dns-servers if you feel you should need to, but i suspect plusnet-dns is not your problem for slow loading pages at this moment in time.
Community Veteran
Posts: 5,187
Thanks: 486
Fixes: 21
Registered: ‎10-06-2010

Re: DNS Server

A side-effect of changing DNS servers is that different DNS servers will return different IP addresses for things hosted on content distribution networks like Akamai - which is a lot of big websites and streaming video services.
Although bizarrely I've just noticed that at the moment, OpenDNS is giving closer IP addresses than Plusnet's own DNS servers, so I might start a new thread about that.