• How to export full domain list from Namecheap

  How to export a large list of domains from Namecheap without opening a support ticket. (Oct 2, 2020)

• Locate printers on the local network

  Use nmap to find printer IPs. (Nov 19, 2019)

• T-Mobile hijacks Google and Level3 DNS servers

  UPDATE: T-Mobile used to hijack 8.8.8.8 and 4.2.2.2 but it looks like they've now stopped. (Oct 28, 2014)

• Downlevel-revealed conditional comments, HTML Email, and Microsoft Outlook

  Different technqiues for targeting (or hiding) chunks of HTML from Microsoft Outlook (Mar 29, 2014)

• Hide those ugly 'utm' strings from your users

  Google Analytics strings are useful for tracking, but your users don't need to see them. (Feb 22, 2014)

• Detecting Ad Blockers in Javascript

  Detecting element-based ad blockers (like AdBlock Plus) using Javascript (Sep 28, 2013)

• Auto-updating Twitter background image

  Using only free tools, I set my Twitter profile background to be a live updating picture of the DC skyline. (Aug 19, 2013)

• Flask apps on Heroku susceptible to IP spoofing

  Flask apps deployed to Heroku or otherwise behind a proxy are often using unsafe code to get the user's "real" IP address. This allows malicious clients to spoof their IP address or replace it with any arbitrary string. (May 12, 2013)

• Deploying Hyde static sites with a simple script

  A quick little script that can deploy a Hyde site. (Feb 13, 2013)