LE59Articles
- What Is a DNS Leak?
Learn what a DNS leak is and why it matters for privacy. This guide explains how DNS queries travel from your system resolver through recursive servers to authoritative servers, why VPNs and proxies can still leak through split tunneling, unmanaged resolvers, and application-level lookups, what an ISP can observe once queries leak, and how to detect and fix the problem with LE59’s DNS Leak Test tool. The article also covers the risks of observable browsing, location hints, and content filtering, and lists practical fixes such as tunnel-side resolvers and DoH/DoT.
- Why Does WebRTC Expose Your IP?
Understand why WebRTC exposes your network addresses to web pages. This guide explains the three ICE candidate types — host, server reflexive, and relay — how browsers reveal private and public addresses during connection setup, and why this happens independently of your HTTP proxy. It compares mDNS blurring, full WebRTC disabling, and extension-based protection, explains when to run a test, and links to LE59’s WebRTC Leak Test tool. It also explains why a result with no candidates or a failed STUN negotiation is not automatically a sign of safety, and confirms that candidates are used only for that single check.
- How to Read an IP Risk Score
Learn how to read an IP risk score correctly. This guide explains the signals such scores evaluate — datacenter, proxy, and VPN characteristics, abuse records, and ownership information — how multiple data sources and confidence levels improve reliability, and the honest meaning of limited and unknown results: not identified as a datacenter is not residential, and unknown is not safe. It also shows how to combine geolocation, ASN, and use case to avoid misjudging an IP, and links to LE59’s IP Risk Check tool.
- How to Prepare a Lucky Draw List
A lucky draw list checklist: define prizes, import via paste or CSV, clean and dedupe, then publish verifiable results.
- How to Verify a LE59 Lucky Draw Result
Verify a lucky draw result: check the SHA-256 seed commitment and result hash, then review the winners yourself.
- Why Your Short Link May Be Blocked
Why a short link gets blocked: pre-creation URL checks, domain-level bans, 410/451 responses, and the appeal flow.
- Dynamic vs Static QR Codes: What's the Difference
Static QR codes never change; dynamic QR codes encode a short link and redirect, so the destination stays updatable.
- How to Check Your Public IP
Learn what your public IP, region and ASN mean and how to read the result.
- How to Verify a VPN Is Working
Check a VPN with egress IP, ASN and DNS/WebRTC signals.
- How to Deduplicate a Draw List
A practical import, cleaning and deduplication workflow for fair draws.
- How to Avoid Duplicate Winners Across Prizes
How to keep rules clear across prize tiers, batched draws and redraws.
- How Short Links Work
How a short code resolves to a target URL and how validation and expiry work.
- Short Links vs QR Codes
How short links and QR codes relate, and when to use each.