Why did my DNS bill go up?

[Mark Andrews]

Worst case should be double the queries which happens when there isn’t a cached DNSKEY RRset to validate the response. If there are multiple queries clustered together the overhead is reduced.  

-- 
Mark Andrews

> On 14 Apr 2022, at 22:23, Andrew P. <andrewemt at hotmail.com> wrote:
> 
> Greetings, all.
> 
> I had a surprise on the bill from my secondary DNS provider after I turned on DNSSEC. The number of record queries on my domains increased by a factor of about 5, compared to the number of record queries when I didn't have DNSSEC. Is this normal for DNSSEC? It's been a consistent significantly higher query level since deploying DNSSEC 3 months ago on 2 small domains (total of 120 records across the two domains), and it was 57 new RRSIG, DNSKEY, and NSEC3PARAM records added the domains for the DNSSEC.
> 
> The average number of attacks per day on my webserver (according to the server logs) does not appear to have increased since the DNSSEC deployment.
> 
> This is for the ka2ddo.org and ka2ddo.radio domains.
> 
> So, is DNSSEC really that much more costly in terms of queries?
> 
> Andrew Pavlin
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