SiteSentry — Website Uptime Monitoring & Downtime Alerts for Businesses
SiteSentry is a website monitoring platform that tracks uptime, SSL certificates, security headers, and DNS records every 5 minutes — and alerts you instantly when something breaks. Stop losing leads, sales, and trust to unnoticed downtime.
Why Website Downtime Costs More Than You Think
Every minute your website is down, slow, or insecure, you're losing customers and credibility. Most businesses don't find out about problems until their users complain — or leave.
Website Monitoring and Security Features
- Uptime monitoring — HTTP status and response time checks every 5 minutes, 24/7
- Instant downtime alerts — email, Telegram, webhooks, and push notifications
- SSL certificate monitoring — multi-threshold expiry alerts at 30, 14, 7, 3, and 1 day
- DNS record monitoring — detect unauthorized changes to A, AAAA, CNAME, MX, TXT, NS records
- Security header scanning — HSTS, CSP, X-Frame-Options, Referrer-Policy, and more
- Sensitive path detection — .env, .git, wp-admin exposure scanning
- Compliance mapping — SOC 2, ISO 27001, and PCI DSS frameworks
- Public status pages — branded, real-time uptime pages for your customers
- Security reports — branded PDF and Markdown export with remediation checklists
- REST API — programmatic monitor management and data retrieval
How Website Monitoring Works with SiteSentry
- Create your free account — no credit card required
- Verify your domain via DNS TXT record
- Add the websites you want to monitor
- Get alerted instantly when issues are detected
Website Monitoring for Every Type of Business
- Digital agencies — manage monitoring for every client website from one account
- E-commerce businesses — protect revenue with instant downtime detection
- Business websites — never lose a lead to an unnoticed outage
- IT and DevOps teams — fewer tools, faster incident response, better SLA reporting
Frequently Asked Questions About Website Monitoring
- What is website uptime monitoring?
- Website uptime monitoring is the process of automatically checking whether your website is accessible and responding correctly. SiteSentry checks your site every 5 minutes and alerts you immediately if it detects downtime.
- How does SiteSentry alert me if my website goes down?
- SiteSentry sends you an alert within 60 seconds via email, Telegram, webhooks, or push notifications when it detects your website is down or returning errors.
- Can SiteSentry monitor SSL certificates and domains?
- Yes. SiteSentry monitors SSL certificate expiry and DNS records, alerting you to changes and upcoming expirations.
- Who should use website monitoring software?
- Any business that depends on its website for revenue, leads, or customer trust — including e-commerce stores, agencies, SaaS companies, and IT teams.
- Is SiteSentry free?
- Yes. SiteSentry offers a free-forever plan with all core monitoring features. No credit card required.