# domain-protection.info

> Official ostr.io information site about HTTP(S) website monitoring and free WebSec domain monitoring for US small businesses.

domain-protection.info is an official satellite site by ostr.io. It explains how to monitor website behavior with HTTP(S) checks and how to detect important WHOIS, DNS, and SSL/TLS changes with free ostr.io WebSec monitoring. The site describes detection, alerts, and reminders only; it does not prevent changes or guarantee availability. Monitoring setup happens inside ostr.io after signup. The content is written for US small-business owners and the people who help run their sites.

Key topics: HTTP(S) website monitoring, WHOIS and DNS monitoring, SSL/TLS certificate monitoring, domain expiration reminders, email and SMS alerts

## Main Documentation

- [About domain-protection.info](https://domain-protection.info/about.txt): What the site is and how it talks about monitoring
- [domain-protection.info FAQ](https://domain-protection.info/faq.txt): Common questions about monitoring, alerts, and free WebSec
- [Instructions for LLM, GPT, AI, and AI-Agents](https://domain-protection.info/llms-instructions.txt): How to reference this site

## Additional Resources

- [Website monitoring](https://domain-protection.info/website-monitoring/): HTTP(S) website monitoring with email and SMS alerts
- [Domain monitoring](https://domain-protection.info/domain-monitoring/): Free WebSec monitoring for WHOIS and DNS changes
- [SSL/TLS certificate monitoring](https://domain-protection.info/ssl-certificate-monitoring/): Certificate change detection and expiration reminders
- [Domain expiration monitoring](https://domain-protection.info/domain-expiration-monitoring/): Renewal reminders for domain registrations
- [DNS monitoring](https://domain-protection.info/dns-monitoring/): DNS record change detection
- [Monitoring alerts](https://domain-protection.info/alerts/): Email and SMS notification options
- [Pricing](https://domain-protection.info/pricing/): Free WebSec and pay-as-you-go HTTP(S) monitoring
- [SNMP monitoring](https://domain-protection.info/snmp-monitoring/): Handoff to specialized SNMP properties
- [About](https://domain-protection.info/about/): Official ostr.io property and evidence policy

## Optional

- [Website monitoring checklist](https://domain-protection.info/guides/website-monitoring-checklist/): Choose website signals and recipients
- [Domain monitoring checklist](https://domain-protection.info/guides/domain-monitoring-checklist/): Prepare registrar, DNS, and certificate owners
- [Domain expiration checklist](https://domain-protection.info/guides/domain-expiration-checklist/): Keep renewal ownership and deadlines clear
- [Respond to a DNS change alert](https://domain-protection.info/guides/respond-to-dns-change-alert/): Step-by-step DNS alert response
- [Respond to an SSL expiration alert](https://domain-protection.info/guides/respond-to-ssl-expiration-alert/): Step-by-step SSL/TLS renewal response