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Domains

ASecurity

Register, manage, and protect domain names with practical DNS and security guidance.

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  • Added September 10, 2026
businessrustgosecurity

Works with

  • cli

Security analysis

A100/100

Pro scans all 3 files and shows the line behind each finding

Scanned September 10, 2026

npx -y skills add luokai0/ai-agent-skills-by-luo-kai --skill domains --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: Domains
description: Register, manage, and protect domain names with practical DNS and security guidance.
metadata: {"clawdbot":{"emoji":"🌐","os":["linux","darwin","win32"]}}
---

# Domain Management Rules

## Before Registration
- Check availability on the registrar directly β€” WHOIS lookups from third parties can trigger front-running (someone registers it before you)
- Search for the domain name + "scam" or "controversy" β€” previous owners leave reputation baggage
- Verify trademark conflicts before investing in branding β€” legal disputes are expensive

## Choosing Extensions
- .com still has highest trust for general audiences β€” alternatives work but require more brand building
- Country TLDs (.co.uk, .de) rank better in local search β€” use them for geo-targeted businesses
- New TLDs (.io, .ai, .dev) work for tech audiences but confuse mainstream users
- Premium domains have recurring premium renewal fees, not just higher initial cost β€” check yearly price

## Registration Practices
- Enable auto-renewal immediately β€” domains lost to expiration get scooped by squatters within hours
- Buy WHOIS privacy β€” public registration data leads to endless spam and social engineering attempts
- Register for multiple years if the domain is important β€” shows search engines you're serious
- Use a dedicated email for registrar accounts β€” losing access to that email means losing the domain

## DNS Fundamentals
- DNS changes take 24-48 hours to fully propagate β€” plan migrations accordingly
- TTL (Time To Live) should be lowered before migrations, raised after β€” low TTL during normal operation wastes resources
- A records point to IP addresses, CNAME points to another domain β€” never CNAME the root domain
- MX records for email are separate from web hosting β€” moving hosts doesn't require changing email if MX stays

## Security
- Enable registrar lock (clientTransferProhibited) β€” prevents unauthorized transfers
- DNSSEC adds cryptographic verification β€” worth enabling but breaks if misconfigured
- Two-factor on registrar account is mandatory β€” domain hijacking is common attack vector
- Authorization/EPP code is the password for transfers β€” treat it like a credential

## Transfers
- 60-day lock after registration or previous transfer β€” plan ahead, can't transfer immediately
- Transfers extend registration by one year β€” not wasted money
- Unlock domain and get auth code before initiating β€” missing either blocks the transfer
- Some TLDs have special transfer rules β€” .uk, .de, and others differ from standard process

## Expiration
- Grace period (usually 30 days) allows renewal at normal price β€” but risky, site goes down
- Redemption period costs 10-20x normal renewal β€” expensive mistake
- After redemption, domain goes to auction or open registration β€” you've lost it
- Expired domains with backlinks get bought by spammers β€” protect your brand's domains even if unused

## Multi-Domain Strategy
- Register common misspellings and redirect β€” typosquatters will otherwise profit from your traffic
- Consider .com + main country TLD at minimum β€” others only if brand is valuable
- Subdomains are free and instant β€” don't buy domains for every project, use subdomains for experiments
- Consolidate domains at one registrar β€” easier management, less credential sprawl

## Common Mistakes
- Registering through web host instead of dedicated registrar β€” harder to move later, often more expensive
- Letting domains expire assuming no one cares β€” competitors and squatters monitor expirations
- Using registrar's free email forwarding for critical accounts β€” tied to domain renewal, single point of failure
- Not documenting which domains exist where β€” large organizations lose track and lose domains

Files in this skill

  • .clawhub/origin.json139 B
  • SKILL.md3.7 KB
  • _meta.json126 B

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