Making a favicon from an SVG, measured: what breaks at 16 pixels
Every favicon guide gives you the same list of files. I built the set from a real 716-byte logo to see the sizes, and found the one check most guides skip. TL;D…
Englishdev.to WebDev
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Sales Tax and VAT for Vibe-Coded Apps: What You Actually Have to Do
Your app has its first few paying customers: one in Germany, one in the US, one in India. Then somebody asks for an invoice with their VAT number on it, and you…
Englishdev.to WebDev
How to Set Up SafeLine for Reviewing WAF Attack Events by Domain and Port
When several websites share a WAF, an attack event needs context: which hostname received the request, which public port handled it, and which application was b…
Englishdev.to Security
Domain-Based vs Port-Based WAF Configuration: How to Review Attack Events
An attack list becomes more useful when you can connect each event to the public application endpoint it concerns. A hostname alone may be insufficient when an …
Englishdev.to Security
Security Tip: HSTS — Force HTTPS So Nobody Downgrades Your Visitors
You installed an SSL certificate, your site loads over HTTPS, and the padlock shows. That should be the end of the story — but it isn't. The first time a visito…
Englishdev.to Security
How to Test Path Traversal and XXE Requests on a WAF with SafeLine
Testing a web application firewall requires more than sending a suspicious URL and seeing an error. You need to confirm that traffic reaches the firewall, estab…
Englishdev.to Security
Direct WAF Placement vs an Existing Proxy Chain: How to Test Path Traversal and XXE
A blocked request is useful evidence only when you know which component blocked it. When testing path traversal and XML External Entity (XXE) requests, placemen…
Englishdev.to Security
How to Auto-Redact Emails, API Keys & PII in Screenshots Before Pasting to ChatGPT (100% Offline on Windows)
Every day, developers and knowledge workers take screenshots of error logs, dashboards, billing pages, or Slack threads and paste them directly into ChatGPT, Cl…
Englishdev.to Security
Your Side Project Doesn't Need a Security Team (But It Does Need a Checklist)
I used to think that security was something only big enterprises needed to worry about. "Who's going to hack my little side project?" I'd tell myself. "I'm just…
Englishdev.to Security
AI Layoffs 2026: Which Jobs Are Actually Being Cut — and Which Ones Are Hiring
AI Layoffs 2026: Which Jobs Are Actually Being Cut — and Which Ones Are Hiring By Shakeel Ahmed — AI Growth Lab · November 9, 2026 Nearly 200,000 tech workers h…
Englishdev.to Security
Building a Social Publishing Queue That Does Not Duplicate Posts
A publishing request can succeed even when your application never receives the response. If a worker treats that timeout as a failure and immediately repeats th…
Englishdev.to Security
Discovery of Designated Resolvers needs validation before automation
Discovery of Designated Resolvers needs validation before automation DNS clients often know only the IP address of a resolver. Discovery of Designated Resolvers…
Englishdev.to Security
🌐 Linux Free Masterclass (Episode 11): Users & Groups (useradd, groupadd, and permissions setup)
🌐 Linux Free Masterclass (Episode 11): Users & Groups (useradd, groupadd, and permissions setup) How do enterprise servers handle multiple system operators secu…
Englishdev.to Linux
AJCDN 国际开户代充 阿里云/腾讯/AWS
国际开户代充 阿里、腾讯、AWS、谷歌、华为、微软，保护你的隐私！24小时售后无忧！欢迎老板咨询～ 加入交流群或者频道，立享9折优惠！【销售TG： @ajcdn030 、频道TG：@ajcdnyazi、交流群TG：@xiaoyangcloud】
Englishdev.to Linux
48-Hour Field Notes: Every Record Parsed Cleanly and the Reconciliation Was Off by a Cent
Parse success is a terrible health signal, and I keep relearning that lesson the expensive way. My extraction step reported a clean parse for every record in th…
Englishdev.to Python
How to fill a niche job board with fresh jobs from company career sites (and remove filled ones automatically)
Disclosure: this uses Career Site Jobs , a tool I built. The approach works with any source that gives you new and closed jobs. Every niche job board hits the s…
Englishdev.to Python
"When a Comment Calls Itself 'Known,' My Reviewer Didn't Buy It"
My CLAUDE.md in this repo has one line near the bottom that I don't fully control: "after your work done codex will review what you done." Whatever I ship throu…
Englishdev.to Python
Routing NDIS Medication Events as Data: Reportable-Incident Rules, Awareness Clocks and a Competency Gate on the Roster
Originally based on our article Medication management and NDIS compliance on rostery.com.au. This version is rewritten for developers and operations staff who m…
Englishdev.to Python
忘却の分子機構が明らかになった今、タンパク質を「中から見る」意味が変わる理由
忘却の分子機構が明らかになった今、タンパク質を「中から見る」意味が変わる理由 先週、Nature に掲載された「忘却の分子機構」に関する論文を読んだとき、私の手元にあった Jupyter Notebook が突然、単なるデータ解析ツールから「生物学の内部を覗き見る窓」へと変わった気がした。 それまで私は、タンパク質の立…
Englishdev.to Python
JSON to Table in Python: 10 Working Recipes
You called pd.json_normalize on an API response. One line, a DataFrame, done. Then you looked at the items column and found a whole list of dicts crammed into e…
Englishdev.to Python