It’s extremely important that visitors to your site are able to reach the content they want, and within a reasonable amount of time. DNS monitoring is the first step in ensuring consistent performance and connectivity.
The new DNS caching features at Dotcom-Monitor allow you to perform some interesting tests that show how DNS caching can affect your page load speed.
We realize that many organizations monitor their online services with a number different goals in mind, and so we listened to the feedback we received that some users want to include the DNS response time in their monitoring and some users want to be able to remove DNS response from their monitors.
How you wish to handle DNS response time in regard to your monitoring needs is up to you, but we want to take this opportunity to show the differences in how DNS response time affects website load using our new tools.
We ran a test monitoring YouTube from a single location in the midwest United States with three different DNS cache settings. A basic HTTP full page load on the YouTube front page resulted in some interesting, although not that surprising results.
Keep in mind the results will vary depending upon a number of variables such as which locations you are monitoring from, the time of day, the load on the DNS servers, and on the website servers.
For George, the clean-up is just beginning. He is not even yet aware that his domain is blacklisted. All he knows is that he can’t send out additional emails, the update email on the company party that evening is now a fire-drill, and his boss is giving the system administrator and him the stink eye. The problem of not knowing for hours that your site has appeared on a DNS Blacklist (DNSBL) and that email—and, even worse, potentially website visitors—are being rejected is a problem with both primary impacts and multiple secondary impacts.
DNS Monitoring Functionality and Feature Updates. The first of several functionality and feature updates for 2014 have been made to Dotcom-Monitor.
New York Times Website Down – The New York Times online publication NYTimes.com suffered a website outage late Wednesday morning, Aug. 13, 2013.
Aug. 1, 2013 – Dotcom-Monitor tracked an Akamai DNS outage today.
Dotcom-Monitor clients that utilize Akamai may have received error messages associated with the Akamai DNS outage lasting from 5-7 minutes starting at approximately 11:01 am CDT.
The Akamai DNS outage, though brief, is only one of several high-profile DNS outage issues that has occurred in the past year. In the recent past, Dotcom-Monitor has detected several high-profile DNS outages for its clients, including…
In the case of managing web traffic, preparation is the key. Moreover, load balancing managed domain name server (DNS) processes is an important method for preparing for web traffic. So, how do you know if your web infrastructure is prepared for a surge in web traffic?
AT&T and GoDaddy’s Domain Name Server (DNS) outages impacted vast areas of the Internet when they hit in 2012, taking down millions of websites. Learn more about the DNS process and take steps to protect your website from potential DNS disasters in 2013.
Vimeo Website Down – At approximately 1:30pm CST on 01/16/2013 Dotcom-Monitor began sending alerts to its clients regarding Vimeo webpage elements timing out. Vimeo, is a U.S.-based video-sharing website on which users can upload, share and view videos. Dotcom-Monitor testing verified intermittent connection Vimeo outages occurring from worldwide locations. Dotcom-Monitor captured a video of the Vimeo outage homepage error (note the 5-second domain name server (DNS) load time) using its UserView Monitoring – Video Capture Technology.
The big day came and you had the high ground, your website was great, you even had some good, cheap monitoring in place, but oops…it turns out that monitoring was a little too cheap. It turns out your “hey, this is cheap” website monitoring service cached the Domain Name Server (DNS) process. You had a DNS issue and you didn’t know it …but your customers did.
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