DNS Lookup Speed
When a user visits a website, the browser resolves the DNS for the IP where your
website is located. DNS resolutions can take from a few milliseconds to several seconds and
can be a major cause of slow page loads.
A browser often needs to download up to 100 objects (stylesheets,
for each object it needs to download. So, there could be hundreds of requests. Each request
requires a time. Page load speed depends on website latency, geographical distance between the user
and server and speed of processing of requests.
Page Load Speed
It's the most important and comprehensive of the tools. It shows an
overall picture of the website. We are constantly improving this tool.
It shows not only website speed and analysis of competitors, but also
provides tips that help you improve loading speed of your website.
Milestone is one of the most important events of the site. By
milestone we understand changing the website's hosting provider or
transferring to a new server. We take into account the changes that
occurred after the move. This data helps webmasters to evaluate how
website performance has changed - latency, DNS lookup, etc. In other
words, the webmaster can understand if it has become worse over time
or better over time.