DNSreport Demo
Select a domain below to see a sample!

google.com declude.com microsoft.com easydns.com amazon.com novell.com sun.com

DNSstuff.com frequently performs DNS lookups at the root servers and zone parent servers.  As a result,
we have contsantly updated response timing from these servers. See below for more details.


Server
Best
Average
Worst
Timeouts
Avg Response
Time
Graph
a.root-servers.net
201ms
216ms
251ms
0%
15ms




b.root-servers.net
37ms
40ms
49ms
0%
3ms




c.root-servers.net
29ms
29ms
33ms
0%
0ms




d.root-servers.net
38ms
40ms
53ms
0%
2ms




e.root-servers.net
56ms
58ms
72ms
0%
2ms




f.root-servers.net
46ms
46ms
60ms
0%
0ms




g.root-servers.net
201ms
248ms
285ms
53%
47ms




h.root-servers.net
48ms
49ms
53ms
0%
1ms




i.root-servers.net
224ms
225ms
238ms
6%
1ms




j.root-servers.net
2ms
6ms
82ms
0%
4ms




k.root-servers.net
64ms
64ms
70ms
0%
0ms




l.root-servers.net
44ms
45ms
49ms
0%
1ms




m.root-servers.net
119ms
128ms
151ms
0%
9ms




a.gtld-servers.net
37ms
41ms
49ms
0%
4ms




b.gtld-servers.net
183ms
183ms
184ms
0%
0ms




c.gtld-servers.net
41ms
43ms
49ms
0%
2ms




d.gtld-servers.net
30ms
32ms
36ms
0%
2ms




e.gtld-servers.net
129ms
143ms
157ms
0%
14ms




f.gtld-servers.net
37ms
40ms
62ms
0%
3ms




g.gtld-servers.net
47ms
50ms
54ms
0%
3ms




h.gtld-servers.net
116ms
126ms
162ms
0%
10ms




i.gtld-servers.net
214ms
217ms
221ms
0%
3ms




j.gtld-servers.net
147ms
153ms
164ms
0%
6ms




k.gtld-servers.net
131ms
145ms
171ms
0%
14ms




l.gtld-servers.net
56ms
59ms
92ms
0%
3ms




m.gtld-servers.net
2ms
5ms
12ms
0%
3ms




tld1.ultradns.net
---
No data yet
---
0%
---
tld2.ultradns.net
---
No data yet
---
0%
---
tld3.ultradns.org
2ms
2ms
2ms
0%
0ms




tld4.ultradns.org
---
No data yet
---
0%
---
tld5.ultradns.info
---
No data yet
---
0%
---
tld6.ultradns.co.uk
---
No data yet
---
0%
---




SUMMARY:

Root servers:
 7.66% 
6ms average delay
3.48% timeout
GTLD (.com/.net) servers:
 5.73% 
5ms average delay
0.00% timeout
.org servers:
 0.00% 
0ms average delay
0.00% timeout




The 'Server' column shows the name of the server being monitored (root-servers.net are the true root servers,
gtld-servers.net are the DNS servers that handle all .com/.net domains, and the ultradns servers handle .org
and several country TLDs).  The 'Best' column shows the best time we recently saw to the server, the 'Average'
column shows the average timing we have recently seen, and the 'Worst' column shows the worst recent time we
have seen.  The 'Timeouts' column shows recent timeouts, and the graph gives an idea of the current
performance of the server.  The 'Avg Response Time' column shows the average response time of the server,
in milliseconds (calculated by subtracting the best time from the average time).

In the graph, the green section represents normal connections, the yellow section represents slow connections,
and the red section represents timeouts.  In a perfect world, you would see mostly green with a very small
yellow section and a very small red section.  If the average connection time is more than about 10ms slower
than the best connection time, the yellow section will be larger than normal.  If there are timeouts, the red
section will appear larger than normal.

The summary shows stats for the root servers, .com/.net parent servers, and the .org parent servers.  It shows
both the average percent delay (the average time divided by the best time), and the average delay in
milliseconds (calculated by subtracting the best times from the average times).

Note that the best connection time is considered a baseline, so a high best time is not necessarily
indicative of a problem (for example, the server may be located a long distance away from ours).  Also,
on some networks timeouts are more common than on other networks (ours experiences a very low packet loss).