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Dev.to · Ozor
1mo ago
5 Free Screenshot APIs for Developers in 2026 (Compared)
Taking screenshots of URLs programmatically? Here are 5 options — including one that's free for 50 requests/day with no signup required.

Dev.to · Ozor
1mo ago
I Run 46 Microservices on a Single $20 VPS — Here's the Architecture
I wanted to build a platform where AI agents could access real-world data — IP geolocation, DNS...

Dev.to · Ozor
1mo ago
How to Build a Website Accessibility Checker in JavaScript (Free API)
Accessibility isn't optional — it's a legal requirement in many countries and affects 15% of the...

Dev.to · Ozor
1mo ago
How to Build a Visual Regression Testing Tool in JavaScript (Free API)
Build an automated visual regression testing tool that catches UI bugs before your users do — screenshot comparison, pixel diffs, and CI integration.

Dev.to · Ozor
1mo ago
How to Detect Any Website's Tech Stack in JavaScript (No Browser Required)
Ever wondered what framework a website uses? Or which CDN, analytics tool, or CMS powers a...

Dev.to · Ozor
1mo ago
How to Geo-Block Countries in Express.js (Free IP Geolocation API)
Build country-based access control middleware for Express.js using a free IP geolocation API. Block, allow, or redirect users by country with zero dependencies.

Dev.to · Ozor
1mo ago
How to Build a Broken Link Checker in JavaScript (Free API)
Dead links destroy user experience and tank your SEO. Google penalizes pages with broken outbound...

Dev.to · Ozor
1mo ago
How to Verify Email Addresses in JavaScript (Without Sending Emails)
You know the drill: a user signs up with asdfgh@notreal.xyz, and your onboarding flow sends a welcome...

Dev.to · Ozor
1mo ago
How to Detect Bot Traffic by IP Address (JavaScript)
If you run a website or API, bot traffic is a fact of life. Scrapers, credential stuffers,...

Dev.to · Ozor
1mo ago
How to Build a Domain Intelligence Tool in JavaScript (DNS + Geolocation + Screenshots)
Build a domain recon tool that pulls DNS records, geolocates servers, and captures screenshots — all with free APIs and under 120 lines of code.

Dev.to · Ozor
1mo ago
How to Detect VPN and Proxy Users by IP Address (JavaScript)
Build a VPN/proxy detection system using IP geolocation, ASN data, and heuristics. Free API, working code, no dependencies.

Dev.to · Ozor
1mo ago
How to Build a Webhook Delivery Monitor with JavaScript (Free APIs)
Webhooks are the backbone of modern integrations — Stripe sends payment events, GitHub sends push...

Dev.to · Ozor
1mo ago
How to Build a Phishing URL Scanner in JavaScript (Free APIs)
Phishing attacks cost businesses $4.76 billion per year. But you can build a basic URL scanner in...

Dev.to · Ozor
1mo ago
How to Build a Crypto Price Alert Bot in Node.js (No Dependencies)
If you trade or hold crypto, you've probably wanted a simple way to get notified when prices move....

Dev.to · Ozor
1mo ago
How to Personalize Your Website by User Location (Free API + JavaScript)
Detect visitor country, city, and timezone with a free IP geolocation API. Personalize content, currency, and language automatically.

Dev.to · Ozor
1mo ago
How to Build Website Uptime Monitoring in 10 Minutes (Free, No Dependencies)
You don't need Datadog, PagerDuty, or a $29/month plan to monitor your websites. With 40 lines of...

Dev.to · Ozor
1mo ago
How to Build a Website Change Detector in 30 Lines of Code
Monitor any website for changes using a free web scraping API. Get notified when content changes — no Puppeteer, no browser dependencies.

Dev.to · Ozor
1mo ago
How to Build a DNS Lookup Tool with JavaScript (Free API, No dig Required)
Need to resolve a domain name from your app? You could shell out to dig or nslookup, but there's a...

Dev.to · Ozor
1mo ago
Free Public IP API — No Key, No Signup, No Rate Limits (ipify Alternative)
A free API to get your public IP address and geolocation data. No API key required. Works from curl, JavaScript, Python, Go. Compare with ipify, ip-api, and ipi

Dev.to · Ozor
1mo ago
45 Node.js Microservices, 1 Server: Why I Chose PM2 Over Kubernetes
Running 45 Fastify and Express microservices on a single VPS with PM2 and Nginx. Here's the architecture, the tradeoffs, and what I learned.

Dev.to · Ozor
1mo ago
Run Code in Any Language with One API Call (No Server Required)
Execute Python, JavaScript, Bash, and TypeScript code via a free REST API. Build code playgrounds, AI agent tools, and automated testing — no Docker, no VMs, no

Dev.to · Ozor
1mo ago
Automate Website Screenshots in Your CI/CD Pipeline (No Puppeteer)
A GitHub Action that takes website screenshots on every push, PR, or deployment. No browser setup, no Puppeteer, no Playwright — one API call.

Dev.to · Ozor
1mo ago
One SDK, 40 APIs: Stop Juggling API Keys
A single JavaScript/Python SDK that wraps 40+ services — geolocation, crypto, DNS, screenshots, scraping, and more. Zero dependencies, free tier.

Dev.to · Ozor
1mo ago
Take Website Screenshots with Code: One API Call, No Puppeteer Setup
Taking screenshots of websites programmatically is one of those tasks that sounds simple until you...
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