19 Articles
Network
Articles filed under Network.
Showing 1–19 of 19 articles
📡 Network
3 Reverse DNS Lookup Tools, Compared Honestly
Compare 3 free reverse DNS lookup tools for finding an IP address's PTR hostname, plus how a browser-based option handles the same check.
🧰 Network
Best 3 HTTP Methods Auditor Tools Compared
Compare three free HTTP method checkers on security context, scan speed, and broader endpoint health analysis.
📬 Network
Best 3 MX Record Checkers Compared
Compare MxToolbox, UptimeRobot, and DNSChecker for MX record lookups, plus a fast, browser-based alternative for checking mail server records.
🧰 Network
Top 3 WebSocket vs Polling Guides
Compare three respected real-time architecture guides against ours and decide between WebSockets, polling, and SSE for the traffic you actually have.
🌐 Network
Best 3 Hostname to IP Tools Compared
Compare three hostname to IP tools and choose the best one for DNS lookups, A/AAAA record checks, or browser-only hostname resolution.
📡 Network
How to Check if an IP Address Is Private or Public
Check whether an IPv4 address falls inside a private, loopback, link-local, or other reserved range, with the matching CIDR block and its typical use.
🌐 Network
How to Read a CIDR Prefix at a Glance
Map any CIDR prefix to its subnet mask and usable host count, understand why two addresses are unusable, and size a subnet without arithmetic.
📡 Network
How to Build a Wake-on-LAN Magic Packet
Construct a magic packet from a MAC address, send it to the right broadcast address, and enable the settings a machine needs to wake at all.
⛓️ Network
How to Trace a CNAME Chain to Its Final Record
Follow a CNAME chain hop by hop to the address it resolves to, count the latency each hop costs, and understand why the apex can't hold one.
🌐 Network
How to Audit Which HTTP Methods an API Allows
Audit which HTTP methods (GET, POST, PUT, DELETE, TRACE, and more) an API endpoint allows, with security notes for each, before something unexpected slips through.
📶 Network
How to Read a Wi-Fi Signal Strength Reading
Understand what a dBm figure means for real throughput, why signal-to-noise matters more than bars, and when a stronger signal won't help at all.
🌐 Network
How to Write DNS Records That Actually Work
Format A, CNAME, MX, SPF and CAA records correctly, including the trailing dot and single-SPF rules that break more setups than anything else.
📡 Network
How to Check a Domain's Mail Server MX Records
Look up how a domain's MX (mail server) records would be reported, with a clear priority and host table, for email deliverability troubleshooting.
🌐 Network
How to Check If Your DNS Changes Have Propagated
Check whether a domain's DNS record has propagated across resolvers in multiple regions, shown in a clean location-by-location table, before you assume it's broken.
📡 Network
How to Preview an IP Address's Reverse-DNS Hostname
Look up how an IP address's reverse-DNS hostname would be reported, with input validation and a clear result layout, for network diagnostics and email setup.
🌐 Network
How to Resolve a Hostname to Its IP Addresses
Look up the A (IPv4) and AAAA (IPv6) address records for a hostname in a clean, readable layout instead of raw command-line output.
📡 Network
How to Check a Server's Ping and Latency Online
Test round-trip time, packet loss, and latency to any website or server from your browser, without installing a desktop ping tool or opening a terminal.
🔌 Network
How to Check If a Port Is Open on Your Server
Understand what an open TCP port actually means, why browsers can't check one directly, and how to think about port checking before you deploy a service.
🌐 Network
How to Look Up the Network Behind an IP Address
Learn what an ASN lookup actually tells you about the network behind an IP address, why the data lives in routing registries, and how to read the result.