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Google Workspace vs Zoho Mail for a small startup: is the price gap worth it?

Google Workspace vs Zoho Mail for a small startup: is the price gap worth it?

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2 min read
I Checked DMARC on 4,437 Indonesian .id Domains. 47% of go.id Can Still Be Spoofed

I Checked DMARC on 4,437 Indonesian .id Domains. 47% of go.id Can Still Be Spoofed

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8 min read
1,570 visitors, then a dead domain: what a registry-level suspension actually looks like

1,570 visitors, then a dead domain: what a registry-level suspension actually looks like

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6 min read
How .ton domains expire, and how to find expired ones

How .ton domains expire, and how to find expired ones

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4 min read
Threat Modeling CVE-2026-19033: Capabilities, Limits and Priorities

Threat Modeling CVE-2026-19033: Capabilities, Limits and Priorities

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4 min read
Comment fonctionne un DNS, expliqué par ce qui se passe quand il tombe

Comment fonctionne un DNS, expliqué par ce qui se passe quand il tombe

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3 min read
Your SPF and DKIM passed last month. Here is why they can fail today without you touching DNS

Your SPF and DKIM passed last month. Here is why they can fail today without you touching DNS

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2 min read
What happens on switch day: cloud migration cutover explained

What happens on switch day: cloud migration cutover explained

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9 min read
How to Diagnose DKIM Failures After an NS Migration

How to Diagnose DKIM Failures After an NS Migration

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3 min read
Unbound access-control is a resolver policy, not a firewall

Unbound access-control is a resolver policy, not a firewall

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3 min read
DMARC reports never arrive: the rua mailbox checklist that finds the real cause

DMARC reports never arrive: the rua mailbox checklist that finds the real cause

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2 min read
Resolving GitHub Pages InvalidDNSError: A Critical Guide for Planning a Software Project

Resolving GitHub Pages InvalidDNSError: A Critical Guide for Planning a Software Project

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5 min read
SERVFAIL: What It Means and How to Diagnose It

SERVFAIL: What It Means and How to Diagnose It

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4 min read
One Domain, Different Answers: Reading Cloudflare and Google DoH JSON

One Domain, Different Answers: Reading Cloudflare and Google DoH JSON

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5 min read
Checking a sending IP's reverse DNS and HELO in stdlib Python, before Spamhaus's November requirement

Checking a sending IP's reverse DNS and HELO in stdlib Python, before Spamhaus's November requirement

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9 min read
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