What is DNSSEC?

1. What is DNSSEC?

2. Should I use for my website?

3. Adsense will be affected?

4. How to use DNSSEC on hostinger?

5. What is childnameserver?

6. DNS records 

7. What will happen if I change the domain of adsense approved website consider from .in to .com?

8. What if I only renew with the same domain?

1. What is DNSSEC?

DNSSEC, or Domain Name System Security Extensions, is a set of security extensions for DNS (Domain Name System) that provides an additional layer of protection against certain types of attacks. It ensures the authenticity and integrity of DNS data by using digital signatures. 

When DNSSEC is implemented, it helps verify that the responses received from DNS queries are authentic and have not been tampered with. This helps protect against attacks such as cache poisoning or man-in-the-middle attacks, enhancing the overall security of the DNS infrastructure.

2. Should I use for my website?

Using DNSSEC for your website is a good idea if you want to enhance its security. It can help protect against certain types of DNS-based attacks and ensure that visitors are reaching the legitimate version of your site. While not all websites require DNSSEC, it adds an extra layer of security, which is especially beneficial if your site handles sensitive information or if you're focused on providing a high level of trust to your users. 

However, implementing DNSSEC can be complex and may require coordination with your domain registrar and DNS hosting provider. If you're comfortable with the additional management and your provider supports it, DNSSEC is a valuable security measure to consider.

3. Adsense will be affected?

DNSSEC itself should not affect AdSense or its functionality. It is primarily focused on securing DNS data and does not interfere with how ads are served or displayed. Implementing DNSSEC will not impact your AdSense account, ads, or earnings. However, it's always a good idea to monitor your site for any unexpected changes after making technical adjustments.

4. How to use DNSSEC on hostinger?

To use DNSSEC with Hostinger, follow these general steps:

1. Log in to Hostinger:

   - Go to your Hostinger account and log in.

2. Access DNS Management:

   - Navigate to the “DNS Zone Editor” or “Domain” section in your Hostinger control panel.

3. Select Your Domain:

   - Choose the domain for which you want to enable DNSSEC.

4. Enable DNSSEC:

   - Look for an option to enable DNSSEC. If DNSSEC is supported, there should be a button or link to activate it.

5. Obtain DS Records:

   - After enabling DNSSEC, you’ll need to add DS (Delegation Signer) records. Hostinger should provide these DS records after activation. 

6. Update DS Records at Your Registrar:

   - Log in to your domain registrar’s control panel and add the DS records provided by Hostinger. This step is crucial as it links your DNSSEC configuration with your domain.

7. Verify Configuration:

   - After updating the DS records, use DNSSEC validation tools to check if DNSSEC is correctly configured for your domain.

If you have trouble or need more specific instructions, consult Hostinger’s support documentation or contact their support team for assistance.

When configuring DNSSEC, you’ll need to provide specific details for the DS (Delegation Signer) record. Here’s what each option means:

1. Key Tag:

   - A numeric identifier for the DNSKEY record associated with the DS record. This tag helps identify the key used for signing.

2. Algorithm:

   - Specifies the algorithm used for signing. Common algorithms include RSA/SHA-1 (algorithm 5), RSA/SHA-256 (algorithm 8), and ECDSA (algorithm 13). Ensure you use the same algorithm as configured in your DNSKEY record.

3. Digest Type:

   - Indicates the hashing algorithm used to create the digest of the DNSKEY record. Common digest types are SHA-1 (type 1) and SHA-256 (type 2). This should match the digest type used in the DNSKEY record.

4. Digest:

   - The actual hash value of the DNSKEY record, created using the chosen digest type. This is a base64-encoded string representing the hash of your DNSKEY record.

To configure DNSSEC, follow these steps:

1. Obtain the DS record details from Hostinger, which usually includes the Key Tag, Algorithm, Digest Type, and Digest.

2. Enter these details into the DNSSEC configuration section in your domain registrar’s control panel.

This process ensures your DNSSEC configuration is properly linked to your domain’s DNS records. If you need specific values for these fields, you may need to consult Hostinger’s support or documentation.

5. What is childnameserver?

A "child nameserver" refers to a DNS nameserver that is authoritative for a subdomain of a parent domain. In DNS hierarchy:

- Parent Nameserver: This is authoritative for a top-level domain or a higher-level domain in the DNS structure. For example, for the domain `example.com`, the parent nameserver would be authoritative for `example.com` and possibly other subdomains like `sub.example.com`.

- Child Nameserver: This is a nameserver responsible for a subdomain or child domain. For instance, if you have a subdomain `sub.example.com`, the child nameserver is authoritative for this subdomain and its records.

In DNSSEC, "child nameserver" is relevant because it is where DNSSEC records (like DS records) are often configured. These records are placed at the parent domain's nameservers to delegate the DNSSEC validation to the child domain's nameservers. This setup helps in ensuring that DNSSEC signatures are properly validated as DNS queries move from the child domain to the parent domain.

6. DNS records 

DNS records are entries in the Domain Name System (DNS) database that provide information about a domain. Here are some common types of DNS records:

1. A Record (Address Record): Maps a domain name to an IPv4 address. For example, `example.com` might have an A record pointing to `93.184.216.34`.

2. AAAA Record: Maps a domain name to an IPv6 address. For example, `example.com` might have an AAAA record pointing to `2606:4700:4700::64`.

3. CNAME Record (Canonical Name Record): Aliases one domain name to another. For example, `www.example.com` can be a CNAME for `example.com`, making `www.example.com` resolve to the same IP address as `example.com`.

4. MX Record (Mail Exchange Record): Specifies mail servers responsible for receiving email on behalf of the domain. For example, `example.com` might have an MX record pointing to `mail.example.com`.

5. TXT Record (Text Record): Holds arbitrary text. Commonly used for verification purposes or to store SPF (Sender Policy Framework) records for email.

6. NS Record (Name Server Record): Specifies the authoritative DNS servers for the domain. For example, `example.com` might have NS records pointing to `ns1.exampledns.com` and `ns2.exampledns.com`.

7. SOA Record (Start of Authority Record): Provides administrative information about the domain, including the primary name server, the domain administrator's email address, and domain serial numbers.

8. PTR Record (Pointer Record): Maps an IP address to a domain name (used in reverse DNS lookups). For example, an IP address might resolve to `host.example.com`.

9. SRV Record (Service Record): Specifies the location of services such as VoIP or chat services. For example, it might indicate where a specific service is running.

10. CAA Record (Certification Authority Authorization Record): Specifies which certificate authorities are permitted to issue certificates for the domain.

11. DNSSEC Records (DS, DNSKEY, RRSIG, NSEC/NSEC3): Used to secure DNS records, ensuring their authenticity and integrity. DS records link to DNSSEC-secured child domains, while DNSKEY records store public keys for DNSSEC validation.

Each type of record serves a specific purpose in the DNS system, helping direct internet traffic, manage email, and more.

7. What will happen if I change the domain of adsense approved website consider from .in to .com

If you change the domain of your AdSense-approved website from `.in` to `.com`, several things will happen:

1. AdSense Approval and Ads:

   - You will need to update your AdSense account with the new domain. AdSense approval is generally tied to the domain it was originally approved for, so you might need to reapply for approval or update your existing application to include the new domain.

   - Make sure to update your AdSense code on the new domain to ensure ads continue to display correctly.

2. SEO Impact:

   - Changing your domain can affect your search engine rankings. Search engines might see it as a new site, which could lead to a temporary drop in rankings. Implementing proper redirects and updating your sitemap can help mitigate this.

3. Redirects:

   - Set up 301 redirects from the old `.in` domain to the new `.com` domain. This helps preserve your SEO rankings and ensures visitors and search engines are directed to the new domain.

4. Update External Links:

   - Update any external links, social media profiles, and other references to the old domain to point to the new `.com` domain.

5. Update Domain Settings:

   - Ensure that all your domain settings, including DNS records and email configurations, are updated to reflect the new domain.

6. Notify AdSense:

   - Contact AdSense support if you face any issues or need guidance on transitioning your domain.

Taking these steps will help ensure a smooth transition and minimize any negative impact on your website's traffic and AdSense performance.

8. What if I only renew with the same domain?

If you renew your domain with the same `.in` extension, you won’t need to make any changes to your AdSense account or face the potential issues associated with a domain change. Here’s what happens if you simply renew:

1. AdSense Account:

   - Your AdSense account will continue to work as usual, as there are no changes to the domain.

2. SEO and Traffic:

   - There will be no SEO impact or loss of traffic, as you are retaining the same domain.

3. Domain Continuity:

   - Your website will remain accessible without interruptions, and any existing DNS settings, including AdSense code integration, will remain valid.

4. No Need for Redirects or Updates:

   - Since the domain is unchanged, you won’t need to set up redirects or update links.

Renewing your domain ensures that your website continues to operate without any additional administrative or technical changes.