You just changed your DNS records, changed your webmaster, or started a new website: when you’re in the right place! DNS Checker provides a free DNS checking service to scan Domain Name System records against a selected list of DNS servers available in most regions around the world.
DNS streaming is the time when DNS configuration takes over the internet over the world. For example, it can take up to 72 hours to complete worldwide. You can check the DNS distribution results from here.
Distribution of DNS Records
When you update your DNS records, it may take up to 72 hours for the settings to apply. During all this time, ISPs around the world are restarting the DNS repository with new DNS information for your domain. However, after setting up DNS records, some visitors may be redirected to the old DNS server due to various DNS cache levels. Some may view the website from the new DNS server immediately after the changes. Additionally, you can play A, AAAA, CNAME, and other DNS records viewing records.
DNS streaming is time consuming
Suppose you changed your domain name names, and wanted to open your domain in a web browser. Your question will not go straight to the point. Instead, each ISP node first hosts its own DNS repository, even if it uses DNS data for that domain. After that, it will scan it to save future applications to speed up the DNA scanning process if it is not available.
Therefore, new nameservers will not generate instant results – ISPs have several cache refresh rates, so some will still hold old DNS data in their archives. But if, after this time, your new DNS changes do not show up, then work on DNS health checks to make sure your DNS changes are up and running.
DNS no longer distributing: Why?
ISPs around the world have different levels of temporary storage. A DNS client or server can store DNS account information in its DNS repository. That information has been temporarily stored, and the DNS servers will process the updated DNS data when TTL (Lifetime) expires.
Where No Domain Name Exists
The DNS server will bring up a name error known as NXDomain (non-domain) response to indicate that the domain name query does not exist.
Hole used by DNS
DNS uses both TCP and UDP port 53. However, the most commonly used DNS port is UDP 53. That is used when a client computer communicates with a DNS server to locate a specific domain name. Make sure that when using UDP 53 for DNS, the maximum power of the query packet is 512 bytes. TCP 53 is mainly used for Zone Transfers where the query pack exceeds 512 bytes. That is fine when using DNSSEC, which adds additional costs to the DNS query package.
DNS failure indicates that DNS server cannot convert domain name into IP address on TCP / IP network. Such failures may occur within the company’s private system or the Internet.
DNS servers are advanced
Primary: 188.8.131.52Second: 184.108.40.206IPv6: Main: 2001: 1608: 10: 25 :: 1c04: b12fSecond: 2001: 1608: 10: 25 :: 9249: d69b
Google Public DNS
Main: 220.127.116.11 Second: 18.104.22.168IPv6: Main: 2001: 4860: 4860 :: 8888 Second: 2001: 4860: 4860 :: 8844
Comodo DNS Secure
Primary: 22.214.171.124Second: 126.96.36.199
Main: 188.8.131.52 Second: 184.108.40.206
Primary: 220.127.116.11Second: 18.104.22.168
Quad9 (Malware Prevention Allowed)
Main: 22.214.171.124Second: 126.96.36.199IPv6: Main: 2620: fe :: feSecondary: 2620: fe :: 9
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