DNS Records Explained: A Guide to Every Record Type You'll Encounter
A, AAAA, CNAME, MX, TXT, NS, SOA — every DNS record type explained with examples of when and why you'd use each one.
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Guides, tutorials, and spotlights on developer tools and Android apps.
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APIBench: Test REST APIs Directly From Your Phone
APIBench is a full REST API client for Android. Here's why a mobile API client is more useful than it sounds, and what makes APIBench different.
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ByteProbe: A BLE Inspector for Android Developers
ByteProbe lets you scan BLE devices, browse GATT services, read characteristics, and watch live notifications — all without writing any code.
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UptimeOwl: Website Uptime Monitoring From Your Android Phone
UptimeOwl runs background checks on your websites and APIs, sends push alerts when something goes down, and shows response time graphs — all for free on Android.
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HopTrace: Visual Traceroute for Android
HopTrace shows you the network path between your phone and any destination — every hop, latency, and where packets are lost. Here's how to read the output.
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RepoPulse: Your GitHub Dashboard on Android
RepoPulse brings your GitHub repos, pull requests, issues, and notifications to Android. Here's how to stay on top of your codebase without a laptop.
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PacketPulse: Real-Time Network Traffic Monitor for Android
PacketPulse shows active network connections, traffic stats, and per-app bandwidth usage on Android. Here's what you can learn from it.
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YAML vs JSON: When to Use Each and How to Format Both
YAML and JSON solve the same problem — structured data — but in very different ways. Here's when each is the right choice and the syntax pitfalls to avoid.
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URL Encoding Explained: %20, %3A, and Why They Exist
URL encoding converts unsafe characters into percent-encoded equivalents. Here's which characters get encoded, why, and the common developer mistakes.
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CSS Minification: What Gets Removed and Why It Matters
CSS minification removes whitespace, comments, and redundant syntax to reduce file size. Here's what's actually happening under the hood and the gains you can expect.
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HTTP Status Codes: The Complete Developer Reference
HTTP status codes communicate what happened to a request. This guide covers the most important codes in each range, with examples of when each appears.
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Essential Android Apps for Network Engineers and Sysadmins
The best free Android apps for network diagnostics, server management, DNS lookups, and infrastructure monitoring — all without ads during use or subscriptions.
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