Using Google/Cloudflare/central DNS can bite you with large downloads
Posted by jpluimers on 2021/10/22
If you think download speeds are slow for large downloads (or multi-media playback is slow or quality is low) on a fast link, then consider your DNS.
Many people report that using one of the centralised DNS services (like Google/Cloudflare/…) causes slowness because they direct CDN lookups to a small pool of servers that get overloaded.
Some links:
- [WayBack] iTunes slowdowns with Google DNS | Joe Maller
- [WayBack] Beware of Using Google Or OpenDNS For iTunes – Slashdot
Via [WayBack] How to check whether DNS is working through a browser? – Super User
Google DNS also allows for interactive querying, for example [WayBack] Google Public DNS
Result for atlassian-domain-for-localhost-connections-only.com/A with DNSSEC validation:
{ "Status": 0, "TC": false, "RD": true, "RA": true, "AD": false, "CD": false, "Question": [ { "name": "atlassian-domain-for-localhost-connections-only.com.", "type": 1 } ], "Answer": [ { "name": "atlassian-domain-for-localhost-connections-only.com.", "type": 1, "TTL": 1620, "data": "127.0.0.1" } ] }
–jeroen
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