Technology, explained clearly — not just networking.
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Cybersecurity
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Cybersecurity
What to Do After Phishing Attack: 8 Urgent Steps
Knowing what to do after a phishing attack can be the difference between a minor scare and a serious financial…
Cybersecurity
Phone Hacked? 10 Signs Happening Right Now (and How to Stop It)
Knowing how to know if your phone is hacked is more important than ever: smartphones hold banking apps, passwords, photos,…
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Tools
Utilities that run instantly, no sign-up required.
Subnet & IP
IPv4 Subnet Calculator
Plan and verify any IP network instantly — no spreadsheets.
Live result
Network
—Broadcast
—Usable hosts
—Mask
—
DNS
DNS Lookup
Inspect any domain's DNS configuration in seconds.
cloudflare.com — real output
A
104.16.132.229TTL 300MX
aspmx.l.google.compri 1TXT
v=spf1 include:_spf.google.com ~allSPF
Security
SSL Certificate Checker
Verify TLS before it breaks in production.
github.com — real output
Subject
github.comIssuer
Let's Encrypt (E6)Expires
2025-04-15 ✓ ValidKey
ECDSA 256-bit · SHA-256
Why TechLYM
Editorial standards, not just SEO
TechLYM covers networking, AI, cybersecurity, and everyday software — written to be genuinely useful, not just search-optimized. Every guide is researched against official docs, live testing, and real troubleshooting experience.
Written and reviewed by human specialists — no AI-generated content published.
Corrections made within 48 hours of a confirmed error being identified.
Free diagnostic tools built for real troubleshooting, not lead generation.