[cs615asa] Green Team - Week 7

Gregory Goldshteyn ggoldsht at stevens.edu
Mon Mar 11 16:05:18 EDT 2019


Hello everyone,

This week, Green team looked into how to reduce DNS lookup times.

The article featured specifically analyses performance for WordPress
hosting, but many of lessons presented apply to web hosting in general.

https://kinsta.com/blog/reduce-dns-lookups/

When designing a website, increasing the number of hosts the site pulls
from increases the amount of time DNS lookup takes, since the browser must
lookup all hosts. Try to reduce the number of hosts your site pulls from
where possible.

If this is not possible, you may also find DNS prefetch useful, as it
performs DNS lookups in the background, allowing the user to get most of
the site, while getting information from other hosts asynchronously.

Finally, you may want to consider purchasing DNS services from a premium
DNS provider. Payed DNS services tend to be faster than free options (but
verify this with benchmarking).
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