Question : "Slow" webiste

I have been sent here with the arduous task of having someone find a solution to why our website is supposedly slow in the US. I have no way of actually knowing if it is slow in the US, what areas of the US are supposedly affected, how many of our customers experience problems with the website or any information concerning demography, computer software they are run etc et c. But never the less.

Our server is located in Germany on a 100mb connection. We have a quad core with 8gb ram, low cpu load and low bandwidth. We run basic apache/mysql service and php on Debian 4. We run some backup every day but even accounting for this this is not the the actual problem.

No one in Europe is complaining......we are located in Sweden and the website renders pretty fast here, even all the way from germany.

Accordingly to alexis our website is slow

http://www.alexa.com/siteinfo/northerner.com

The website is run using Bitrix sofware and has customisations to our needs involving  local database connections.

I've had a server guy in to check our server settings and it's fine.The datacentre don't have any problems that they know of. And if the site code was shit then surely i would also be experiencing painfully slow loading times.

So any ideas?

Answer : "Slow" webiste

As you can see in the code snippets a link from holland is ~8ms round trip while the US has a roundtrip of about 100ms or near 200ms.
This is the time that it takes to travel one packet from source to northerner.com & receive its answer.
(No CPU processing etc.)

If you have a lot of smal files to server it will also take at least this time to setup a link (keep-alive might help).
For every query (HTTP) it takes at least this responsetime to start an answer.

so if there is 10 objects you are looking at  10*200ms = 2 second delay... just because of distance & forwarding delays. (excluding your processing).



 

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If I do a traceroute from http://zelfservice.nl.uu.net/cgi-bin/nph-tracme.cgi --8<-- traceroute to northerner.com (78.159.109.62): 1-30 hops, 38 byte packets 1 vlan10.ge-0-2-0.ams9eusoesr1.ams.ops.eu.uu.net (195.129.70.2) 0.576 ms (ttl=254!) 0.330 ms (ttl=254!) 0.382 ms (ttl=254!) 2 ge-1-1-0.GW7.AMS9.ALTER.NET (212.136.185.117) 0.516 ms (ttl=253!) 0.308 ms (ttl=253!) 0.387 ms (ttl=253!) 3 so-2-0-0.CR1.AMS9.ALTER.NET (212.136.185.93) 0.385 ms (ttl=252!) 0.346 ms (ttl=252!) 0.389 ms (ttl=252!) 4 so-2-0-0.XT1.AMS2.ALTER.NET (146.188.8.78) 0.521 ms (ttl=251!) 0.452 ms (ttl=251!) 0.391 ms (ttl=251!) 5 xe-0-0-0.BR2.AMS3.ALTER.NET (146.188.4.34) 0.523 ms (ttl=250!) 0.464 ms (ttl=250!) 0.534 ms (ttl=250!) 6 pos4-0.core2.Amsterdam.level3.net (146.188.67.202) 0.765 ms 0.851 ms 0.785 ms 7 ae-33-51.ebr1.Amsterdam1.Level3.net (4.69.139.129) 1.05 ms (ttl=58!) 0.982 ms (ttl=58!) 0.915 ms (ttl=58!) 8 ae-2-2.ebr2.Dusseldorf1.Level3.net (4.69.133.90) 7.04 ms (ttl=55!) 7.10 ms (ttl=55!) 7.04 ms (ttl=55!) 9 ae-1-100.ebr1.Dusseldorf1.Level3.net (4.69.141.149) 7.18 ms (ttl=56!) 6.85 ms (ttl=56!) 7.31 ms (ttl=56!) 10 ae-2-2.ebr2.Frankfurt1.Level3.net (4.69.132.138) 7.17 ms (ttl=57!) 7.25 ms (ttl=57!) 7.31 ms (ttl=57!) 11 ae-72-72.csw2.Frankfurt1.Level3.net (4.69.140.22) 7.17 ms (ttl=248!) ae-82-82.csw3.Frankfurt1.Level3.net (4.69.140.26) 18.6 ms (ttl=249!) ae-62-62.csw1.Frankfurt1.Level3.net (4.69.140.18) 13.1 ms (ttl=249!) 12 ae-3-89.edge5.Frankfurt1.Level3.net (4.68.23.141) 7.50 ms (ttl=248!) 7.37 ms (ttl=248!) 7.17 ms (ttl=248!) 13 195.16.160.46 (195.16.160.46) 7.84 ms (ttl=57!) 7.93 ms (ttl=57!) 7.97 ms (ttl=57!) 14 89-149-218-178.internetserviceteam.com (89.149.218.178) 8.24 ms (ttl=247!) 7.84 ms (ttl=247!) 7.81 ms (ttl=247!) 15 78.159.109.62 (78.159.109.62) 7.97 ms (ttl=55!) 7.83 ms (ttl=55!) 7.98 ms (ttl=55!) --8<-- is the result... ~ 8ms for round trip. The same for USA http://www.net.princeton.edu/cgi-bin/traceroute.pl --8<-- Traceroute tracing path from www.net.princeton.edu to 78.159.109.62 ... traceroute to 78.159.109.62 (78.159.109.62), 30 hops max, 40 byte packets 1 gigagate1 (128.112.128.114) 0.517 ms 0.341 ms 0.332 ms 2 vgate1 (128.112.12.22) 0.334 ms 0.327 ms 0.348 ms 3 gi-6-0-226.hse1.phlapa02.paetec.net (209.92.27.33) 2.269 ms 1.979 ms 2.485 ms 4 ge-1-1-0-311.core02.phlapa02.paetec.net (169.130.105.19) 2.343 ms 2.374 ms 11.886 ms 5 * * * 6 * * * 7 as0.core02.asbnva01.paetec.net (169.130.81.233) 169.349 ms 15.935 ms 6.432 ms 8 ge-9-25.car3.Washington1.Level3.net (4.79.169.165) 6.087 ms 6.395 ms 6.104 ms 9 vlan69.csw1.Washington1.Level3.net (4.68.17.62) 11.242 ms 15.339 ms 18.067 ms 10 ae-62-62.ebr2.Washington1.Level3.net (4.69.134.145) 7.312 ms 7.349 ms 8.038 ms 11 ae-43-43.ebr2.Frankfurt1.Level3.net (4.69.137.57) 96.621 ms 96.720 ms ae-42-42.ebr2.Frankfurt1.Level3.net (4.69.137.53) 97.194 ms 12 ae-72-72.csw2.Frankfurt1.Level3.net (4.69.140.22) 104.468 ms ae-62-62.csw1.Frankfurt1.Level3.net (4.69.140.18) 108.746 ms ae-72-72.csw2.Frankfurt1.Level3.net (4.69.140.22) 98.545 ms 13 ae-3-89.edge5.Frankfurt1.Level3.net (4.68.23.141) 98.004 ms ae-2-79.edge5.Frankfurt1.Level3.net (4.68.23.77) 96.724 ms 97.373 ms 14 195.16.160.46 (195.16.160.46) 94.734 ms 95.415 ms 95.779 ms 15 89-149-218-178.internetserviceteam.com (89.149.218.178) 95.782 ms 95.455 ms 95.992 ms 16 78.159.109.62 (78.159.109.62) 95.514 ms 96.119 ms 95.152 ms --8<-- or about 100ms http://www.hq42.net/cgi-bin/remote_trace.cgi --8<-- HOST LOSS RCVD SENT BEST AVG WORST gw1.hq42.net 0% 16 16 63.42 126.50 191.97 static.rbak01.atnex.net 63% 6 16 77.30 99.02 141.17 208.65.88.25 63% 6 16 78.40 107.09 192.82 fa0-14.na01.b002053-0.atl04.atlas.cogentco.com 50% 8 16 77.69 107.82 195.41 gi1-48.3802.mpd01.atl04.atlas.cogentco.com 63% 6 16 78.10 79.13 79.89 te7-4.mpd01.atl01.atlas.cogentco.com 82% 3 16 78.57 100.25 142.24 te4-7.mpd01.dca01.atlas.cogentco.com 75% 4 16 90.88 107.22 153.38 te9-2.mpd03.jfk02.atlas.cogentco.com 63% 6 16 96.64 96.95 97.21 te7-3.ccr01.jfk07.atlas.cogentco.com 19% 13 16 96.62 114.22 249.53 gblx.jfk07.atlas.cogentco.com 25% 12 16 96.14 115.47 254.46 64.209.102.50 63% 6 16 180.69 213.98 271.81 89-149-218-78.internetserviceteam.com 69% 5 16 181.48 207.26 262.13 server.northerner.com 20% 12 15 181.40 210.03 268.01 --8<-- Or about 200ms round trip. http://webtrace.info/traceroute?q=northerner.com&submit=traceroute --8<-- Hop Host C Loss% ASN best Avg worst Country ASName 3 D 99-185-40-3.lightspeed.sntcca.sbcglobal. 4 20% 7132 21.3 21.83 22.5 US SBIS-AS - AT&T Inte 5 D 71.145.0.8 2 60% 7132 21.4 21.55 21.7 US SBIS-AS - AT&T Inte 7 D 151.164.43.208 5 0% 7132 20.5 33.94 86.7 US SBIS-AS - AT&T Inte 8 D ex2-p5-1.eqsjca.sbcglobal.net 5 0% 7132 20.6 39.46 113 US SBIS-AS - AT&T Inte 9 D asn3356-level3.eqsjca.sbcglobal.net 5 0% 7132 20.5 23.22 32.4 US SBIS-AS - AT&T Inte 10 D vlan89.csw3.SanJose1.Level3.net 5 0% 3356 22 29.82 35 US LEVEL3 Level 3 Comm 11 D ae-84-84.ebr4.SanJose1.Level3.net 5 0% 3356 23.6 26.3 29.3 US LEVEL3 Level 3 Comm 12 D ae-2.ebr4.NewYork1.Level3.net 5 0% 3356 92.2 98.32 105.2 US LEVEL3 Level 3 Comm 13 D ae-84-84.csw3.NewYork1.Level3.net 5 0% 3356 92.8 96.18 104.3 US LEVEL3 Level 3 Comm 14 D ae-81-81.ebr1.NewYork1.Level3.net 5 0% 3356 92.5 92.8 93.1 US LEVEL3 Level 3 Comm 15 D ae-3-3.ebr4.Washington1.Level3.net 5 0% 3356 94.3 100.72 108 US LEVEL3 Level 3 Comm 16 D ae-74-74.csw2.Washington1.Level3.net 5 0% 3356 94.3 99.2 105.9 US LEVEL3 Level 3 Comm 17 D ae-72-72.ebr2.Washington1.Level3.net 5 0% 3356 94.8 95.44 96.4 US LEVEL3 Level 3 Comm 18 D ae-44-44.ebr2.Frankfurt1.Level3.net 5 0% 3356 185.6 185.86 186.2 US LEVEL3 Level 3 Comm 19 D ae-62-62.csw1.Frankfurt1.Level3.net 5 0% 3356 186 190.16 197.9 US LEVEL3 Level 3 Comm 20 D ae-1-69.edge5.Frankfurt1.Level3.net 5 0% 3356 186 186.48 186.7 US LEVEL3 Level 3 Comm 21 D 195.16.160.46 5 0% 3356 186.1 186.52 187.2 GB LEVEL3 Level 3 Comm 22 D 89-149-218-178.internetserviceteam.com 5 0% 28753 187.1 187.9 188.4 DE NETDIRECT AS NETDIR 23 D server.northerner.com 5 0% 28753 186.9 187.22 187.6 DE NETDIRECT AS NETDIR --8<-- Or about 190 ms.

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