DNS · SSL · email auth

The boring records that make the rest of the internet trust you.

Misconfigured DNS is the #1 cause of "the website is down but our hosting says it's up." We do the audit, the migration, and the cutover — with a written rollback plan and zero-downtime DNS propagation.

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What gets configured.

TypeHostValueStatus
A@104.21.xx.xxOK
AAAA@2606:4700:: ...OK
CNAMEwwwexample.comOK
MX@aspmx.l.google.com priority 1OK
TXT@ (SPF)v=spf1 include:_spf.google.com ~allOK
TXT_dmarcv=DMARC1; p=quarantine; rua=mailto:...OK
TXTgoogle._domainkeyv=DKIM1; k=rsa; p=MIGfMA0...OK
SSLCloudflareFull (strict) · Auto-renewOK
HSTSHeadersmax-age=31536000; preloadOK

Zero-downtime cutover, every time.

Lower TTL 24h before. Audit current records. Replicate to new provider. Switch nameservers. Verify globally with a DNS propagation tool. Restore TTL. We plan it as a rollback-able operation — never as a "hopefully this works."

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