vBSEO Web Hosting Survey - Demand Blazing Speed!

Originally Posted by pspmodandcfw

I log into vbseo every day and it always works. Your location says your in Ireland, perhaps you need to wait a little while longer than i have to for the site to load.

No. It's DNS - not connectivity

Originally Posted by briansol

I'm on here, well, constantly, and haven't had any issues either.

next time you see it happen, run a tracert to vbseo.com and see what happens.
.

I've already run diagnostics on it.

The problem lies with the dns:

dig +trace vbseo.com

; <<>> DiG 9.5.0-P2 <<>> +trace vbseo.com
;; global options: printcmd
. 90707 IN NS E.ROOT-SERVERS.NET.
. 90707 IN NS F.ROOT-SERVERS.NET.
. 90707 IN NS G.ROOT-SERVERS.NET.
. 90707 IN NS H.ROOT-SERVERS.NET.
. 90707 IN NS I.ROOT-SERVERS.NET.
. 90707 IN NS J.ROOT-SERVERS.NET.
. 90707 IN NS K.ROOT-SERVERS.NET.
. 90707 IN NS L.ROOT-SERVERS.NET.
. 90707 IN NS M.ROOT-SERVERS.NET.
. 90707 IN NS A.ROOT-SERVERS.NET.
. 90707 IN NS B.ROOT-SERVERS.NET.
. 90707 IN NS C.ROOT-SERVERS.NET.
. 90707 IN NS D.ROOT-SERVERS.NET.
;; Received 500 bytes from 192.168.1.1#53(192.168.1.1) in 53 ms

com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
com. 172800 IN NS m.gtld-servers.net.
;; Received 487 bytes from 128.63.2.53#53(H.ROOT-SERVERS.NET) in 150 ms

vbseo.com. 172800 IN NS ns1.crawlability.com.
vbseo.com. 172800 IN NS ns2.crawlability.com.
;; Received 108 bytes from 192.5.6.30#53(a.gtld-servers.net) in 170 ms

dig: couldn't get address for 'ns1.crawlability.com': not found


That very last line is NOT normal.

So I ran it through a few more tools like this one:
DNSCheck which threw similar errors

And this test also throws loads of errors

Those are odd results, and it could be something on the DNS side entries where you reside, as out of where I am, the NE USA, the resolve works correctly:

ping ns1.crawlability.com

Pinging ns1.crawlability.com [75.126.140.204] with 32 bytes of data:
Reply from 75.126.140.204: bytes=32 time=54ms TTL=51
Reply from 75.126.140.204: bytes=32 time=54ms TTL=51
Reply from 75.126.140.204: bytes=32 time=52ms TTL=51
Reply from 75.126.140.204: bytes=32 time=53ms TTL=51

Ping statistics for 75.126.140.204:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 52ms, Maximum = 54ms, Average = 53ms

ping ns2.crawlability.com

Pinging ns2.crawlability.com [75.126.140.205] with 32 bytes of data:
Reply from 75.126.140.205: bytes=32 time=54ms TTL=51
Reply from 75.126.140.205: bytes=32 time=53ms TTL=51
Reply from 75.126.140.205: bytes=32 time=55ms TTL=51
Reply from 75.126.140.205: bytes=32 time=53ms TTL=51

Ping statistics for 75.126.140.205:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 53ms, Maximum = 55ms, Average = 53ms

ping vbseo.com

Pinging vbseo.com [75.126.140.207] with 32 bytes of data:
Reply from 75.126.140.207: bytes=32 time=52ms TTL=51
Reply from 75.126.140.207: bytes=32 time=54ms TTL=51
Reply from 75.126.140.207: bytes=32 time=53ms TTL=51
Reply from 75.126.140.207: bytes=32 time=61ms TTL=51

Ping statistics for 75.126.140.207:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 52ms, Maximum = 61ms, Average = 55ms


ns1.crawlability.com is DNS mapped to 75.126.140.204, based on the results I get.

The DNS check tools are not checking against our local (USA) DNS servers, obviously, as they are sourced to Sweden and France, respectively.

When the same checks are run from a US based DNS tool, all results come back as intact and correct.

DNS Quick Check - DNS Report Tool, Test your DNS delegation, DNS Servers, Mail and Web Servers, Network Admins, Webmasters, Hosting

Code:

Got DNS list for 'vbseo.com' from A.GTLD-SERVERS.NET

Found NS record: ns1.crawlability.com[75.126.140.204], was resolved to IP address by A.GTLD-SERVERS.NET
Found NS record: ns2.crawlability.com[75.126.140.205], was resolved to IP address by A.GTLD-SERVERS.NET
Domain has 2 DNS server(s)
 CheckDNS.NET is verifying if NS are alive
DNS server ns1.crawlability.com[75.126.140.204] is alive and authoritative for domain vbseo.com
DNS server ns2.crawlability.com[75.126.140.205] is alive and authoritative for domain vbseo.com
2 server(s) are alive
 

It would appear to be some form of foreign addressing issue, as the entries exist.