1 HOUR TIMER UPDATE

TXT records are rarely changed so anywhere within the 1 – 12-hour timeframe should suffice. TXT Record: Widely used for DKIM records, email security and verifying domain ownership.It is recommended that you set your TTL for something longer than the average session time (which is between 2-3 minutes). CNAME Record: Your main website URL, for example ( should usually never change.A standard baseline would be around the 1-hour mark but may need to be adjusted depending on how often changes need to be made on an emergency basis (30 seconds here is not crazy). A or AAAA Record: Your A records should be set to a faster pace TTL as IP address lookups change frequently.Below, we outline some considerations to take into account. Having a good understanding of what is vital to your website will play a critical role in selecting an appropriate time to live. It is essential to understand the different record types and how they might apply to your situation. Library resources, reference sites, etc.) Common Record Types The following TTL times will give you a rough estimate of what typically is set in DNS configuration:ģ00 seconds = 5 minutes = “Very Short” – Websites within this timeframe use a low TTL focus to make fast changes but still can utilize some level of caching to help reduce resource consumption.ģ600 seconds = 1 hour = “Short” – Websites within this timeframe use a low TTL focus to make fast changes but still can utilize some level of caching to help reduce resource consumption.Ĩ6400 seconds = 24 hours = “Long” – The opposite applies for websites using a 24 hour TTL as the focus shifts more towards a daily cache utilization.Ħ04800 seconds = 7 days = “Very long” – Weekly TTLs are not as common, but may be used for sites that contain publish or reputable information that does not change all that often (ex. TTL times are always represented in seconds for example, 300 seconds equals 5 minutes to live. What are typical TTL times for DNS records?

What is a DNS Record?Ī Domain Name Server (DNS) record is ultimately a simple message that specifies which destination a request should be directed to and how long this specific destination should be cached for before being updated (TTL). This process of utilizing the resolver’s cache significantly improves your end-users’ overall experience.

1 HOUR TIMER UPDATE

Then for that hour, every user that queries that DNS site will receive a cached version of the website until the resolver pulls another update copy from the authoritative server again. For example, your DNS resolver will pull a DNS record from its authoritative server every hour. Your time to live is critical in controlling your resolver caching directly. By having a lower TTL, you can ensure that you are receiving the most recent updates in a given timeframe. What is DNS TTL Used for?ĭNS TTLs are vital to websites that make constant changes and updates frequently. You want it to be the perfect balance between “quickly updating” and “resource savvy.” Straying too far in either direction it will cost you both time and resources to accommodate. It is essential to understand how you are implementing your TTL. The TTL is like a stopwatch for how long to keep a DNS record. What is a DNS TTL?ĭNS TTL (time to live) represents the time each step takes for DNS to cache a record. We will get into this in more detail later in the article. DNS Propagation is essentially the time it takes for ISPs to update their caches with your new DNS changes. Now we have to point out some of the pitfalls of TTL, starting with something called DNS Propagation. It is much faster to check a cached version against your local resolver than it is to perform a DNS record lookup. A noticeable positive is the quick turnaround time on DNS lookups, thus speeding up your internet browsing experience overall. Some high-level considerations need to be understood regarding DNS TTL strategy. If you would like to jump directly to the specifics, use the menu below:

1 hour timer