Google DNS Oddity

Fri Sep 6 20:33:23 UTC 2019

On 2019-09-06, Jared Mauch <jared at puck.nether.net> sent:
> You may want to post on dns-operations instead.

Will do.

> Can you do a dig +trace www.google.com instead, that would be more
> instructive about what’s happening at each layer of the delegation.

# dig +trace www.google.com. aaaa

; <<>> DiG 9.10.3-P4-Ubuntu <<>> +trace www.google.com. aaaa
;; global options: +cmd
.			40841	IN	NS	b.root-servers.net.
.			40841	IN	NS	g.root-servers.net.
.			40841	IN	NS	k.root-servers.net.
.			40841	IN	NS	i.root-servers.net.
.			40841	IN	NS	m.root-servers.net.
.			40841	IN	NS	c.root-servers.net.
.			40841	IN	NS	l.root-servers.net.
.			40841	IN	NS	e.root-servers.net.
.			40841	IN	NS	d.root-servers.net.
.			40841	IN	NS	f.root-servers.net.
.			40841	IN	NS	h.root-servers.net.
.			40841	IN	NS	j.root-servers.net.
.			40841	IN	NS	a.root-servers.net.
.			40841	IN	RRSIG	NS 8 0 518400 20190917050000 20190904040000 59944 . W93v8sQLROIXL1qvcezKKnL8XwzzxuFb6VbyV7h+SG27BIgJiOGrNE5q M6ncTYozvKd3tKJ/cQZcnIO9zi9tInPKgVctNF1Fp2FGb8TnFuTkIOMy MEVzbWEZrZErcToDRaK1WzlrxBL6gsIfegE8gjC/2XVnKQENZCJ4qgg8 V/u1CKbJGV0nmnVusCZ6pXnkVJDDdvvicaUf0IoxqEONh1h/xKghX14R 6leOUCJpAtdS0M9eyPeBL5myCm7olOVhi/A+9QjZLv60vefYAF7aREtW 5mEvg/YyNz4dUOHrhz/iRbK/wGIbtyuTpvy3Gg/F2dtrVfJBzobDnGpv sFO4xA==
;; Received 525 bytes from 8.8.8.8#53(8.8.8.8) in 1 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.
com.			86400	IN	DS	30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CF C41A5766
com.			86400	IN	RRSIG	DS 8 1 86400 20190919170000 20190906160000 59944 . ep9gNcyySwR/AqNOnfjXq3OCw5IwOJnIxU4U25UdZ2ejwbJqLf8ytp68 O5DQz1N/PvrEhi1Wg8XyQHZM+fc38cYhhjG5HMVOcEN3wvifnxTWEwBs ay2GxF10TtUpg9TF4Qs2+V8k0ABWwAKIBbSAeZ+C+l5mBg18CCnTgjeg PR+466SgA7sHbzaI9PYK57suhq3uLrphcC2Ti7jmV9V41H5D52gNTiV5 eQ2BsPo+l5LyLrvusailMOzogav9v4M9bnOSGTcc85nf/wD5/Vo4R4MU OexIxio0NGBl7GeS3zoPKV29CYnfcuZBkD2VBuPKZafxp0nIo4olMznn szi9lg==
;; Received 1174 bytes from 199.7.83.42#53(l.root-servers.net) in 60 ms

google.com.		172800	IN	NS	ns2.google.com.
google.com.		172800	IN	NS	ns1.google.com.
google.com.		172800	IN	NS	ns3.google.com.
google.com.		172800	IN	NS	ns4.google.com.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20190912044627 20190905033627 17708 com. kXWtAEptQhH9JpsAJzpvEwEwRtybI/FVl9Hrd1lr/GTkZ3P4clnR7YLB quX4CVf8E0+gEfwf4U2PpmphROV1eHweyycVydvTE8etaDipTpItbtyG 7Iz/uKjp1TY3RD+qNa6LZ1juEs70aKPsbmEV79rtiTW2kurdgqslP5jH Jg0=
S84BDVKNH5AGDSI7F5J0O3NPRHU0G7JQ.com. 86400 IN NSEC3 1 1 0 - S84CFH3A62N0FJPC5D9IJ2VJR71OGLV5 NS DS RRSIG
S84BDVKNH5AGDSI7F5J0O3NPRHU0G7JQ.com. 86400 IN RRSIG NSEC3 8 2 86400 20190913045601 20190906034601 17708 com. bJE7LV1REfTtY1jFj/9qA1CKIDBgCJOTV42tSwf92aqhTAkflM9QFH7/ 3Z5440IkZ8PoWMt9Yn7fn+Q+cTZVnbj071jVpiLNXshhMQbtDC1eJkLz AIuATIj+dqWTWQg7vut0oiy0wnJ2ktSgqTFe4JtwRD0lWO6+NgnhbgQD 2yg=
;; Received 776 bytes from 192.43.172.30#53(i.gtld-servers.net) in 74 ms

www-anycast.google.com.	300	IN	AAAA	2001:4860:4802:32::75
www-anycast.google.com.	300	IN	AAAA	2001:4860:4802:34::75
www-anycast.google.com.	300	IN	AAAA	2001:4860:4802:38::75
www-anycast.google.com.	300	IN	AAAA	2001:4860:4802:36::75
;; Received 167 bytes from 216.239.38.10#53(ns4.google.com) in 6 ms

-- 
Chip Marshall <chip at 2bithacker.net>