Free Course

All Levels

Domain Troubleshooting

Fix domain problems fast

17 lessons

6-7 hours

About this course

When domains break, every minute counts. This comprehensive 17-lesson course equips you with systematic troubleshooting skills to diagnose and fix the most common domain issues quickly and confidently.

What you'll learn

Diagnose domain issues systematically
Fix DNS propagation and resolution problems
Recover from expired domains and failed transfers
Resolve email issues after domain changes

Course Content

Domain Not Resolving

Start here

The most common issue: your domain just isn't working. Learn the systematic approach to fix it.

Check if the problem is local or globalVerify nameservers are correctly configu...

9 min

Slow DNS Propagation

DNS changes can take up to 48 hours. Learn why and what you can do about it.

DNS caching causes propagation delaysLower TTL before making changes

11 min

Showing Old Content

You've updated your site but visitors see old content. Multiple caching layers could be the culprit.

Browser cache, DNS cache, and CDN cache ...Learn how to clear each caching layer

10 min

Failed Domain Transfers

Domain transfers fail for specific, fixable reasons. Learn to identify and resolve them.

60-day lock after registration or transf...EPP code issues are the #1 cause

12 min

Recovering Expired Domains

Domain expired? Don't panic. You have a grace period to recover it.

Grace period typically lasts 30 daysRedemption period costs more but domain ...

9 min

Email Issues After DNS Changes

DNS changes often break email. Learn how to prevent and fix email routing issues.

MX records determine email routingSPF and DKIM records affect deliverabili...

13 min

Website Down, Domain Works

Domain resolves correctly but website won't load? The issue is hosting, not DNS.

Use dig/nslookup to confirm DNS is worki...Check hosting account status and server ...

10 min

Lost Account Access

Locked out of your registrar account? Here's how to recover access to your domains.

Keep registration email accessibleRegistrars have identity verification pr...

8 min

Can't Unlock Your Domain

Domain locked and you can't unlock it? Learn the common causes and solutions.

Some locks are automatic (60-day post-tr...Contact registrar support for registry-l...

9 min

Domain in Pending Delete

Your domain entered pending delete status. Understand what happens next and your options.

Pending delete lasts 5 days for most TLD...The domain cannot be recovered during th...

10 min

Domain Renewal Failed

Auto-renewal failed? Learn how to fix payment issues and prevent domain loss.

Update expired credit card informationCheck for sufficient account balance

9 min

Why Was My Domain Suspended?

Domain suspended unexpectedly? Understand the common reasons and how to resolve them.

ICANN requires verified contact informat...Abuse reports can trigger suspensions

11 min

WHOIS Information Not Updating

Made changes but WHOIS still shows old info? Learn about update delays and verification.

WHOIS updates can take 24-48 hoursSome changes require email verification

8 min

Domain Points to Wrong Website

Your domain is showing someone else's website. Learn how to diagnose and fix this.

Check A records and CNAME configurationVerify nameservers are pointing to the r...

10 min

Domain Suspended or Parked

Your domain shows a parked page or suspension notice. Understand why and how to fix it.

Parked pages appear when DNS isn't confi...Suspensions can be due to abuse or payme...

10 min

Verification Email Not Received

Waiting for a verification email that never arrives? Learn troubleshooting steps.

Check spam/junk folders firstVerify the email address on file is corr...

8 min

Transferred to Wrong Registrar

Domain ended up at the wrong registrar? Learn how this happens and how to fix it.

Double-check destination before initiati...Contact both registrars for resolution

9 min

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Who it's for

Website owners experiencing issues
IT support staff
Web developers and designers
Anyone managing domains