The Webalert Blog
Expert insights on website monitoring, uptime optimization, SSL management, and building trust with status pages.
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Is My Website Down? How to Check From Outside in 60 Seconds
Find out if your website is really down or only down for you. Step-by-step external checks: DNS, ping, multi-region, third-party tools, and what to do next.
May 27, 2026
12 min read
Uptime Downtime Calculator: 99% to 99.999% Allowed Downtime
How much downtime does each uptime percentage actually allow? Full tables from 99% to 99.999% in seconds, minutes, hours and days per day, month and year.
May 27, 2026
11 min read
Cron Dead-Man Switch Monitoring: Catch Missed Jobs Fast
Detect cron and scheduled tasks that silently stop running. Build dead-man switches with last-success timestamps, grace periods, and missed-vs-failed alerts.
May 26, 2026
11 min read
Incoming Webhook Monitoring: Retries, Failures & Security
Master incoming webhook monitoring. Learn how to track endpoint health, handle retries, ensure security, and prevent silent integration failures.
May 26, 2026
11 min read
Response Body Validation Monitoring: When 200 OK Lies
Stop relying on just 200 OK. Learn how to use response body validation to detect false greens, missing content, and database errors on your website.
May 26, 2026
12 min read
Cookie Consent Banner Monitoring: GDPR & CCPA Compliance
Monitor cookie consent banners in production. Catch missing CMP scripts, broken buttons, wrong regions, and analytics firing before consent.
May 24, 2026
6 min read
Open Graph Monitoring: Social Cards, OG Images & Link Previews
Monitor Open Graph and Twitter/X card metadata. Catch broken social previews, missing OG images, wrong canonical URLs, and stale share cards.
May 24, 2026
6 min read
Site Search Monitoring: Empty Results, 500s & Relevance Drift
Monitor site search endpoints and result pages. Catch empty results, 500s, indexing drift, slow queries, and relevance regressions before users bounce.
May 24, 2026
7 min read
DNS Propagation, CAA & DNSSEC Monitoring: Deep Dive
Monitor DNS propagation, CAA records, DNSSEC validation, MX records, nameserver drift, and resolver differences before DNS changes become outages.
May 22, 2026
9 min read
Domain Expiry & WHOIS Monitoring: Prevent the Worst Outage
Monitor domain expiry, WHOIS/RDAP records, registrar lock, and nameserver delegation. Prevent the outage that takes down web, email, and trust.
May 22, 2026
11 min read
TLS Configuration Monitoring: Cipher, Chain, OCSP & CT Logs
Monitor TLS beyond certificate expiry. Catch weak ciphers, broken chains, OCSP failures, SAN drift, CT log surprises, and HSTS regressions.
May 22, 2026
9 min read
HTTP Security Headers Monitoring: CSP, HSTS, CORS Drift
Monitor HTTP security headers in production. Catch CSP, HSTS, CORS, and X-Frame-Options drift on deploy before compliance and XSS gaps open.
May 20, 2026
9 min read