How Long Does A Ptr Record Take To Register

Apr 28, 2022

Domantas M.

3min Read

What is a PTR Record and How to Practice Reverse IP Lookup?

What is a PTR Record and How to Do Reverse IP Lookup?

Are you lot experiencing bounce backs while trying to send emails from your hosting account? That can happen due to PTR record errors on your DNS. In this tutorial, we'll exist discussing what a PTR record is and how to check whether your IP address has one with a PTR lookup. Let'south become started!

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What is a PTR Record and Why Do You Demand I

A PTR tape is well-known as the reverse version of an A record. While A record maps the domain name to an IP address, the PTR record maps the IP address to a hostname. So, the PTR record ensures that your IP address officially connects to your host.

Configuring the PTR record is essential if you're using both internal or external mail servers. This record adds reliability to sending servers and allows the receiving end to check the hostname of your IP address. Information technology is an excellent way of protection against all sorts of spammers.

That's why some major email providers like Yahoo Mail service and Gmail exercise a contrary DNS lookup before accepting incoming emails.

Two Methods to Check PTR Record and Opposite DNS Lookup

Perform the methods beneath to come across your domain'south PTR tape value and brand sure that you've set a contrary lookup:

Using Computer Consoles

Check whether or not the IP address is resolving into the hostname past checking the PTR tape value through your computer consoles.

If you're using Windows, run this syntax on the control prompt:

nslookup IP_ADDRESS

Pro Tip

Change the IP_ADDRESS with your domain'south IP accost.

Let's say yous want to do a PRT lookup for 54-243-154-20. Then, you'll see this:

Microsoft Windows [Version ten.0.18362.418] (c) 2019 Microsoft Corporation. All rights reserved.  C:\Users\DCW-3>nslookup 54.243.154.xx Server:  hotspot.niagahoster.co.id Accost:  192.168.8.1  Proper noun:    ec2-54-243-154-twenty.compute-1.amazonaws.com Address:  54.243.154.20

As yous can see, the PTR record is ec2-54-243-154-twenty.compute-1.amazonaws.com.

The process is similar if you perform this on Linux's console terminal or MacOs's final. Do the PRT lookup with the post-obit command:

dig -x IP_ADDRESS

Pro Tip

Remember to change the IP_ADDRESS with your real IP address.

The output will wait like this in Linux:

~$ dig -x 54.243.154.xx  ; <<>> DiG 9.10.three-P4-Ubuntu <<>> -x 54.243.154.xx ;; global options: +cmd  ;; Got reply: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48405  ;; flags: qr rd ra; QUERY: i, ANSWER: 1, AUTHORITY: 0, Boosted: 0   ;; QUESTION Department: ;20.154.243.54.in-addr.arpa.        IN PTR  ;; ANSWER SECTION: 20.154.243.54.in-addr.arpa. 250     IN PTR ec2-54-243-154-xx.compute-1.amazonaws.com  ;; Query time: 21 msec ;; SERVER: 127.0.1.1#53(127.0.i.1) ;; WHEN: Monday Nov 04 12:42:56 WIB 2019 ;; MSG SIZE rcvd: 99

On macOS, you'll come across a similar result likewise:

~ dig -x 54.243.154.twenty  ; <<>> DiG 9.ten.6-P1 <<>> -x 54.243.154.xx  ;; global options: +cmd  ;; Got answer:  ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26997 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, Say-so: 5, Additional: ane  ;; OPT PSEUDOSECTION: ; EDNS: version:0, flags:; udp: 4096  ;; QUESTION SECTION:  ;xx.154.243.54.in-addr.arpa.    IN PTR   ;; Respond SECTION:  twenty.154.243.54.in-addr.arpa. 250 IN PTR ec2-54-243-154-xx.compute-1.amazonaws.com  ;; Dominance SECTION: 154.243.54.in-addr.arpa. 3600   IN NS x1.amazonaws.com. 154.243.54.in-addr.arpa. 3600   IN NS x3.amazonaws.org. 154.243.54.in-addr.arpa. 3600   IN NS pdns1.ultradns.net. 154.243.54.in-addr.arpa. 3600   IN NS x4.amazonaws.com. 154.243.54.in-addr.arpa. 3600   IN NS x5.amazonaws.org.   ;; Query time: 38 msec  ;; SERVER: 118.98.44.100#53(118.98.44.100)  ;; WHEN: Mon November 04 thirteen:02:56 WIB 2019  ;; MSG SIZE rcvd: 223

From the Reply Department, you can see that the PTR record value is ec2-54-243-154-xx.compute-1.amazonaws.com.

Using Online Tools

Alternatively, you tin can utilize online reverse lookup tools like MxToolBox to observe out the hostname of the IP accost. All yous need to do is enter the IP address in the field and press the Reverse Lookup push button.

Check your PTR record with an online checker

Pro Tip

Unfortunately, if the lookup shows that you haven't set a PTR record for your IP address, contact your hosting provider or ISP and request to create one.

Conclusion

Equally we've discussed, a PTR tape is the reverse version of your domain'south IP address. It confirms that your IP accost connects to a hostname.

If your IP address doesn't point correctly, y'all need to prepare a PTR lookup to your hosting provider. This way, you'll exist able to avoid email bounce backs!

Domantas leads the content and SEO teams forward with fresh ideas and out of the box approaches. Armed with extensive SEO and marketing noesis, he aims to spread the word of Hostinger to every corner of the globe. During his complimentary time, Domantas likes to hone his web development skills and travel to exotic places.