Network & DNS Diagnostics BLOG
Network & DNS Diagnostics
IP lookups, DNS propagation, HTTP header inspection, and web performance.
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Network & DNS Diagnostics
2026-08-30
How to Check DNS Records & Troubleshoot Global DNS Propagation [مکمل اردو گائیڈ اور ٹپس]
Master A, AAAA, CNAME, MX, TXT, and NS DNS records. Learn how TTL values influence global name server caching, and how to verify domain records online. اس تفصیلی مضمون میں مرحلہ وار طریقہ کار، بہترین طریقے اور آسان رہنمائی جانیے۔
6 min readمضمون پڑھیں
Network & DNS Diagnostics
2026-08-16
What is Reverse DNS (rDNS) & Why PTR Records Prevent Email Spam Filtering [مکمل اردو گائیڈ اور ٹپس]
Learn how Pointer (PTR) records map IP addresses back to domain names. Discover why mail servers enforce Forward-Confirmed reverse DNS (FCrDNS) for spam rejection. اس تفصیلی مضمون میں مرحلہ وار طریقہ کار، بہترین طریقے اور آسان رہنمائی جانیے۔
5 min readمضمون پڑھیں