Slow DNS: Understanding DNS Performance Best Practices and Troubleshooting
DNS performance is crucial for overall website performance and user experience. Slow DNS response can be caused by several factors, including end-user internet connection speed, geographical distance, and server performance. Tools like ping, traceroute, dig, and DNSPerf can help troubleshoot slow DNS performance. Best practices for improving DNS performance include using a DNS provider with CDN architecture, considering self-managed DNS, increasing DNS TTL values, and using CNAME flattening or DNS prefetch.
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Director of Marketing at Internet Systems Consortium
11moISC (the authors of the dig tool, deprecated the name "Domain Information Groper") in 2017..... <refsection><info><title>DESCRIPTION</title></info> - <para><command>dig</command> - (domain information groper) is a flexible tool + <para><command>dig</command> is a flexible tool for interrogating DNS name servers. It performs DNS lookups and displays the answers that are returned from the name server(s) that were queried. Most DNS administrators use <command>dig</command> to diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml index 810e93874f5..b593e9ec6be 100644 --- a/doc/arm/Bv9ARM-book.xml +++ b/doc/arm/Bv9ARM-book.xml @@ -892,7 +892,7 @@ zone "eng.example.com" { <term xml:id="dig"><command>dig</command></term> <listitem> <para> - The domain information groper (<command>dig</command>) + <command>dig</command> is the most versatile and complete of these lookup tools. It has two modes: simple interactive mode for a single query, and batch mode which executes a