Operations | Monitoring | ITSM | DevOps | Cloud

New: SSL Certificate Monitoring, Security Center, Domain & SSL Expiration Tracking - Plus Our Affiliate Program

DNS Spy now goes well beyond DNS record monitoring. We've shipped SSL certificate discovery and security auditing, expanded the Security Center to 40+ automated checks across six categories, and built expiration tracking for both domains and SSL certificates — with tiered alerts so nothing expires without warning.

What Are DNS Records? DNS explained in simple terms | A complete guide

Learn how DNS (Domain Name System) works and why it's called the internet's phone book. This video breaks down the entire DNS resolution process, from cache checks to root servers, and covers every essential DNS record type, including A, AAAA, CNAME, MX, NS, SOA, TXT, PTR, SRV, and CAA records.

New Features: Team Members and Additional Email Recipients

DNS Check now supports two features for Enterprise accounts that make it easier to work as a team: Team Members and Additional Email Recipients. Team Members lets multiple people log in and work with your DNS records using their own credentials. Additional Email Recipients sends notification emails to people who need to stay informed but don't need to log in.

BIND 9 CVE-2026-1519: The NSEC3 DoS Vulnerability Putting DNS Resolvers at Risk

On March 25, 2026, the Internet Systems Consortium (ISC) released patches for three vulnerabilities in BIND 9, the most widely deployed DNS server software in the world. The headline flaw — CVE-2026-1519 — carries a CVSS score of 7.5 and is remotely exploitable with no authentication required. An attacker who controls a maliciously crafted DNS zone can trigger the vulnerability by forcing a BIND resolver to process excessive NSEC3 iterations during DNSSEC validation of an insecure delegation.

DNS Monitoring

You can now monitor DNS records directly from Hyperping. DNS issues are often invisible until your users start complaining. With DNS monitoring, Hyperping checks that your records resolve correctly from multiple locations and alerts you the moment something goes wrong. Head to your monitors dashboard to create a DNS monitor. You can also manage DNS monitors via the API. Questions? Reach out via in-app chat or email us at hello@hyperping.io.

DNS blocklist monitoring now available to all Oh Dear users

Your domain is on a spam blocklist. Password reset emails aren't arriving, order confirmations land in spam, and customers are complaining that "your site doesn't work." By the time you hear about it, the damage has been building for days. We've shipped DNS blocklist monitoring to catch this early. Oh Dear now checks your domain against 11 major blocklists and notifies you the moment you're listed, with direct links to get removed.

3 Best Tools to Check DNS Records of Domains

DNS records are instructions that tell the internet how to handle your domain. They store details like your website’s IP address, email servers, and security settings. When someone visits your site or sends you an email, DNS records guide the request to the right server. Without correct DNS records, websites can break, and emails can fail. Many tools let you check DNS records, but not all provide clear, reliable results. Some tools show only basic records, while others provide deep insights.

Monitor Load Balanced DNS Records with CIDR Ranges

DNS Check's load balancer monitoring now supports CIDR notation, making it practical to monitor domains served by CDNs and cloud providers that use large IP pools. Instead of listing every possible IP address a provider might return, you can enter CIDR ranges like 104.16.0.0/13 and DNS Check will verify that responses fall within those ranges.

Introducing WHOIS History & Monitoring and Phishing Sentinel: Complete Brand Protection for Your DNS Infrastructure

DNS Spy now offers complete brand protection with WHOIS History & Monitoring and Phishing Sentinel—automatically tracking domain registration changes and detecting phishing variants before they become security incidents.