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📰 Dev.to · Billy

15 articles · Updated every 3 hours · View all reads

All Articles 182,352Blog Posts 166,502Tech Tutorials 48,848Research Papers 35,704News 22,626 ⚡ AI Lessons
How to Check SPF, DKIM, and DMARC Records in Python
Dev.to · Billy 📣 Digital Marketing & Growth ⚡ AI Lesson 1mo ago
How to Check SPF, DKIM, and DMARC Records in Python
If your app sends email — transactional or marketing — three DNS records decide whether it lands in...
Rotating Residential Proxies in Python: requests, Scrapy & Sticky Sessions
Dev.to · Billy 🔧 Backend Engineering ⚡ AI Lesson 1mo ago
Rotating Residential Proxies in Python: requests, Scrapy & Sticky Sessions
When you scrape at any real volume, the bottleneck is rarely your code — it's the target site's rate...
Finding Network Device Info Programmatically: A Python Guide with ScanSearch
Dev.to · Billy 🔧 Backend Engineering ⚡ AI Lesson 2mo ago
Finding Network Device Info Programmatically: A Python Guide with ScanSearch
Ever needed to quickly check the exposure of a specific type of network device, or verify if a known...
Finding Exposed Services & Vulnerabilities: A Developer's Quick Guide with ScanSearch
Dev.to · Billy 🔐 Cybersecurity ⚡ AI Lesson 2mo ago
Finding Exposed Services & Vulnerabilities: A Developer's Quick Guide with ScanSearch
Ever been in a situation where you need to quickly identify what services are exposed on a particular...
Catch expiring TLS certs and weak security headers in CI — with one small CLI
Dev.to · Billy 🔐 Cybersecurity ⚡ AI Lesson 2mo ago
Catch expiring TLS certs and weak security headers in CI — with one small CLI
Your CI proves the app builds, the tests pass, and maybe that there are no known-vulnerable...
The Cheapest Dedicated Servers in 2026: A Price-Checked Shortlist
Dev.to · Billy ☁️ DevOps & Cloud ⚡ AI Lesson 2mo ago
The Cheapest Dedicated Servers in 2026: A Price-Checked Shortlist
If you have ever tried to price a bare-metal server, you know the game: a big "from $X/mo" on the...
Bypassing Telegram Blocks: How MTProto FakeTLS Proxies Actually Work
Dev.to · Billy 🔐 Cybersecurity ⚡ AI Lesson 2mo ago
Bypassing Telegram Blocks: How MTProto FakeTLS Proxies Actually Work
When an ISP or national firewall throttles or blocks Telegram, the usual advice is "use a VPN." But...
A free proxy list that's actually checked (HTTP/SOCKS4/SOCKS5, updated every 30 min)
Dev.to · Billy ☁️ DevOps & Cloud ⚡ AI Lesson 2mo ago
A free proxy list that's actually checked (HTTP/SOCKS4/SOCKS5, updated every 30 min)
Every "free proxy list" you find is the same story: a giant wall of ip:port lines, 90% of them...
Rotating proxies for Scrapy, Playwright and requests — one small library
Dev.to · Billy 🔧 Backend Engineering ⚡ AI Lesson 2mo ago
Rotating proxies for Scrapy, Playwright and requests — one small library
If you scrape anything at scale, you know the drill: proxies die, sites start returning 403/429, and...
Finding Exposed Services (and Fixing Them) with ScanSearch and Python
Dev.to · Billy 🔐 Cybersecurity ⚡ AI Lesson 2mo ago
Finding Exposed Services (and Fixing Them) with ScanSearch and Python
Ever wondered what parts of your infrastructure are inadvertently exposed to the internet? Or maybe...
Stop Guessing What’s Public: Automating Attack Surface Discovery
Dev.to · Billy 🔧 Backend Engineering 2mo ago
Stop Guessing What’s Public: Automating Attack Surface Discovery
The "Forgotten Server" Problem Every developer has been there. You spin up a temporary...