---
type: Monitoring Feature
title: "Domain Monitoring with Free WebSec | ostr.io"
description: "Detect important WHOIS and DNS record changes with free ostr.io WebSec monitoring, and route email and SMS alerts to the people who can review them quickly."
resource: "https://domain-protection.info/domain-monitoring/"
tags: [domain monitoring, ostr-io]
timestamp: 2026-05-27T00:00:00Z
---

# Know when your domain records change

Detect important WHOIS and DNS record changes with free ostr.io WebSec monitoring, and route email and SMS alerts to the people who can review them quickly.

## Read the full page

[Know when your domain records change](https://domain-protection.info/domain-monitoring/) on domain-protection.info.

## Verified claims

- ostr.io WebSec monitors WHOIS, DNS, and SSL/TLS records and can alert on detected changes. (source: https://ostr.io/info/domain-names-protection, accessed 2026-05-27)
- WebSec domain monitoring is free for users on all ostr.io plans. (source: https://ostr.io/info/domain-names-protection, accessed 2026-05-27)
- WebSec sends reminders for domain-name and SSL/TLS certificate expiration. (source: https://ostr.io/info/domain-names-protection, accessed 2026-05-27)

## Related concepts

- [Detect DNS record changes and validate them fast](/dns-monitoring.md)
- [Watch certificate changes and renew before customers notice](/ssl-certificate-monitoring.md)
- [Get renewal reminders before a domain is due](/domain-expiration-monitoring.md)
- [Send alerts to people who can act](/alerts.md)
- [Free domain signals. Pay-as-you-go website monitoring.](/pricing.md)
- [Domain monitoring checklist](/guides/domain-monitoring-checklist.md)

## Source

Generated from domain-protection.info page metadata and a dated ostr.io evidence ledger (verified 2026-05-27). This site describes monitoring, detection, alerts, and reminders only. Claims about ostr.io are limited to the cited public pages, are not confirmed beyond them, and should be re-checked against the current ostr.io interface before reuse.