Blog
Practical, fix-first guides for freelancers and agencies who keep client sites running.
- 500 Internal Server Error: What It Means and How to Fix It
A 500 Internal Server Error means the server accepted the request and then failed to build the page. Find the real cause in the logs — not on the screen.
- 502 Bad Gateway: What It Means and How to Fix It
A 502 Bad Gateway means the server in front of your site got an unusable reply from the one behind it. Find the culprit — origin, proxy, or host — and fix it.
- 503 Service Unavailable: Causes and How to Fix It
A 503 Service Unavailable means the server is up but cannot take the request right now. Learn the real causes, the Retry-After header, and what it does to SEO.
- 504 Gateway Timeout: Causes and How to Fix It
A 504 Gateway Timeout means the proxy waited for your server and gave up. Learn why it happens, how it differs from a 502, and the fixes that actually hold.
- This Site Can't Be Reached: What It Means and How to Fix It
Chrome's 'This site can't be reached' page hides a code that names the real fault. Tell a down server from a bad DNS record or a local network problem.
- Certificate Errors on Every Website? Here Is the Fix
Getting certificate errors on all websites at once? It is your clock, antivirus, Wi-Fi login page, or an old OS, not the sites. Find which in two minutes.
- Certificate 'freenas_default' Has Expired: The TrueNAS Fix
TrueNAS warning 'Certificate freenas_default has expired'? Replace the default GUI certificate, clear the alert, and stop it recurring in 10 minutes.
- curl (60) SSL Certificate Problem: Certificate Has Expired
Fix 'curl: (60) SSL certificate problem: certificate has expired' — old CA bundles, the 2021 Let's Encrypt root, wrong clocks, or a real expiry.
- NET::ERR_CERT_DATE_INVALID: What It Means and How to Fix It
Chrome shows NET::ERR_CERT_DATE_INVALID when a certificate's dates fail. Tell a visitor-side cause from a real expiry, and fix both in minutes.
- Certificate Has Expired: How to Fix It on Any Platform
Seeing 'certificate has expired' on a site? Confirm it with one command, then renew on certbot, cPanel, Plesk, Cloudflare, IIS, or a managed host.
- Your Connection Is Not Private: What It Means, How to Fix
Chrome's 'Your connection is not private' page has a code under it. Read the code, tell a visitor problem from a site problem, and fix either in minutes.
- Multi-Domain DNS Monitoring Tools: What to Look For (2026)
How to monitor DNS records, uptime, and expiry across many domains from one dashboard, and how to pick a DNS monitoring tool that fits your client roster.
- 404 vs Soft-404: The Real Difference and How to Fix Both
A hard 404 clearly reports a missing page; a soft-404 returns 200 for one. Learn to detect both and the fix order that stops soft-404s slipping through.
- Tooling for Metadata Privacy: Find Leaked File Data
How to automatically find leaked file metadata in PDFs, images, and documents with scanning tools, and the fix order that stops it recurring.
- SitesRadar vs UptimeRobot for Client Sites
An honest comparison of SitesRadar and UptimeRobot for freelancers and agencies: uptime pings versus full site health, pricing, and when to use each.
- UptimeRobot Alternatives for Agencies in 2026
Why agencies outgrow uptime-only monitoring, what to look for in an alternative, and how to evaluate options against your client care plans.
- SSL Certificate Expiration Monitoring for Client Sites
Monitor SSL certificate expiration across client sites, catch renewal failures early, and avoid browser-warning support tickets.
- Website Change Monitoring for Client Sites
Website change monitoring catches silent homepage, SEO, DNS, and content regressions before a client or customer reports them.
- Client Site Down? A 10-Minute Freelancer Triage Checklist
Client says the site's down. Here's the exact 10-minute triage order — DNS, SSL, hosting, app, CDN — before you touch anything else.
- Why Your SSL Certificate Expired Without Warning
SSL expired despite auto-renewal? Fix it now with certbot and openssl, then learn the seven failure modes that break renewal silently.
- WordPress Links Not Working After Migration: How to Fix
WordPress links not working after a migration is usually stale permalinks or an old domain. Repair the URLs, add 301s, then check the site for broken links.