Real-Time Monitoring

DNS
Monitoring

Lookup Latency, Record Validation & Nameserver Uptime

If your DNS goes down, your entire business goes down. Monitor DNS resolution times, track unexpected record changes, and ensure your global nameservers are always responding.

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Overview

What is DNS Monitoring?

DNS (Domain Name System) monitoring is the process of continuously querying your domain's nameservers to ensure they are accurately and quickly translating your human-readable domain (like bigbell.ai) into its corresponding IP address. It involves tracking DNS lookup latency, verifying that the correct A, CNAME, or MX records are returned, and checking for propagation issues.

Why DNS Monitoring Matters

DNS is the phonebook of the internet. If your DNS provider suffers an outage (which happens even to major cloud providers), users cannot reach your website, APIs, or email servers, even if your underlying infrastructure is perfectly healthy. By the time a user reports a 'Server Not Found' error, the damage is done. DNS monitoring catches resolution failures instantly and tracks lookup latency, which is the very first step in a user's page load experience.

✓Detect DNS provider outages before users report them
✓Verify that critical A and MX records haven't been hijacked
✓Monitor DNS resolution latency from global locations
✓Ensure DNS propagation is successful after making changes

Core Use Cases

Vital for mitigating DNS spoofing or hijacking attacks, monitoring the SLA of premium managed DNS providers (like Route53 or Cloudflare), and troubleshooting localized routing issues where users in specific countries cannot resolve your domain.

Features

Complete DNS Monitoring Capabilities

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Lookup Latency

Measure exactly how many milliseconds it takes for a nameserver to return the IP address for your domain.

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Record Validation

Query specific record types (A, AAAA, MX, TXT, CNAME) and verify the returned value matches your expected IP or text.

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Global Resolution

Query your DNS from multiple geographic locations to catch regional DNS propagation failures or localized routing blocks.

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Hijacking Alerts

Get notified instantly if the IP address returned for your domain suddenly changes, indicating a potential DNS hijack.

FAQ

Frequently Asked Questions

Because DNS is critical to every single web request, checking your primary nameservers every 1 to 5 minutes is highly recommended.

Yes, if your DNS provider is under a DDoS attack, lookup latency will spike massively or requests will time out. BigBell will alert you to this degradation immediately.

BigBell can query specific nameservers directly. If one fails, we can alert you to the degradation, even if the user experience isn't fully broken yet.

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