惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

Apple Machine Learning Research
Apple Machine Learning Research
AWS News Blog
AWS News Blog
Google DeepMind News
Google DeepMind News
U
Unit 42
博客园 - 叶小钗
博客园 - 聂微东
GbyAI
GbyAI
Stack Overflow Blog
Stack Overflow Blog
有赞技术团队
有赞技术团队
aimingoo的专栏
aimingoo的专栏
D
DataBreaches.Net
CTFtime.org: upcoming CTF events
CTFtime.org: upcoming CTF events
Jina AI
Jina AI
美团技术团队
The Cloudflare Blog
M
MIT News - Artificial intelligence
Microsoft Azure Blog
Microsoft Azure Blog
I
InfoQ
S
Schneier on Security
C
Check Point Blog
Project Zero
Project Zero
The Hacker News
The Hacker News
Scott Helme
Scott Helme
K
KPMG report finds enterprise disconnect between AI and its ROI | CIO
Cisco Talos Blog
Cisco Talos Blog
P
Privacy International News Feed
SecWiki News
SecWiki News
Latest news
Latest news
MongoDB | Blog
MongoDB | Blog
S
Secure Thoughts
Google Online Security Blog
Google Online Security Blog
F
Fortinet All Blogs
博客园 - 三生石上(FineUI控件)
H
Help Net Security
TaoSecurity Blog
TaoSecurity Blog
cs.CL updates on arXiv.org
cs.CL updates on arXiv.org
Last Week in AI
Last Week in AI
P
Privacy & Cybersecurity Law Blog
Forbes - Security
Forbes - Security
G
GRAHAM CLULEY
N
Netflix TechBlog - Medium
L
Lohrmann on Cybersecurity
A
About on SuperTechFans
T
The Exploit Database - CXSecurity.com
C
Cisco Blogs
PCI Perspectives
PCI Perspectives
大猫的无限游戏
大猫的无限游戏
T
Troy Hunt's Blog
H
Hacker News: Front Page
Vercel News
Vercel News

DEV Community

Authentication Security Deep Dive: From Brute Force to Salted Hashing (With Java Examples) Why AI Systems Don’t Fail — They Drift Spilling beans for how i learn for exam😁"Reinforcement Learning Cheat Sheet" I Replaced Chrome with Safari for AI Browser Automation. Here's What Broke (and What Finally Worked) How Python Borrows Other People's Work The $40 Architecture: Processing 1 Billion API Requests with 99.99% Uptime Vibe Coding: A Workflow Guide (From Zero to SaaS) Most webhook security guides protect the wrong side. The scary part is delivery. Headless CMS for TanStack Start: Build a Blog with Cosmic EU Age Verification App "Hacked in 2 Minutes" — What Actually Happened Comfy Cloud’s delete function does not actually remove files Running AI Models on GPU Cloud Servers: A Beginner Guide Event-driven media intelligence with AWS Step Functions and Bedrock I scored 500 AI prompts across 8 quality dimensions — here's what broke How to Call Google Gemini API from Next.js (Free Tier, No Backend Needed) The Portal Protocol: Reclaiming Human Connection in the Age of AI How to Fix Your Team's Scattered Knowledge Problem With a Self-Hosted Forum Intro to tc Cloud Functors: A Graph-First Mental Model for the Modern Cloud Designing Multi-Tenant Backends With Both Ownership and Team Access I Built a Neumorphic CSS Library with 77+ Components — Here's What I Learned PostgreSQL Performance Optimization: Why Connection Pooling Is Critical at Scale Cómo construí un SaaS multi-rubro para gestionar expensas en Argentina con FastAPI + Vue 3 🚀 I Built an Ethical Hacking Scanner Tool – Open Source Project I Replaced /usage and /context in Claude Code With a Single Statusline A Pythonic Way to Handle Emails (IMAP/SMTP) with Auto-Discovery and AI-Ready Design I Collected 8.9 Million Polymarket Price Points — Here's What I Found About How Markets Really Move EcoTrack AI — Carbon Footprint Tracker & Dashboard Everyone's Using AI. No One Agrees How. 5 self-hosted ebook managers worth trying in 2026 Building Your First AI Agent with LangChain: From Chatbot to Autonomous Assistant Common SOC 2 Failures (Real World) Stop Vibe-Checking Your AI App: A Practical Guide to Evals How to Use SonarQube and SonarScanner Locally to Level Up Your Code Quality Your Next To-Do App Is Dead — I Replaced Mine with an OpenClaw AI Sign a Nostr event in 60 lines of Python using coincurve — no nostr-sdk, no nbxplorer, no rust toolchain ITGC Audit Explained Like You’re in Big 4 Patch Tuesday abril 2026: Microsoft parcha 163 vulnerabilidades y un zero-day en SharePoint Stop scraping everything: a better way to track competitor price changes Listing on MCPize + the Official MCP Registry while routing payments OUTSIDE the marketplace — how I kept 100% of my x402 revenue Building an AI-Powered Risk Intelligence System Using Serverless Architecture Why We Ripped Function Overloading Out of Our AI Toolchain Testing AI-Generated Code: How to Actually Know If It Works SaaS Churn Is Killing Your Business. Here Is What to Do About It (Without a Support Team) The Speed of AI Is No Longer Linear - And Self-Improving Models Are Why How to Implement RBAC for MCP Tools: A Practical Guide for Engineering Teams From Standard Quote to Persuasive Proposal: AI Automation for Arborists I built a CLI that scaffolds complete multi-tenant SaaS apps Axios CVE-2025–62718: The Silent SSRF Bug That Could Be Hiding in Your Node.js App Right Now The dashboard that ended our friendship Data Pipelines Explained Simply (and How to Build Them with Python) The Hidden Cost of AI Systems Nobody Talks About. undefined vs undeclared, and how typeof behaves Switching from file-based jobs to NATS/Kafka in Rust without changing code io_uring Adventures: Rust Servers That Love Syscalls Why Agentic AI is Killing the Traditional Database The POUR principles of web accessibility for developers and designers Quantum Neural Network 3D — A Deep Dive into Interactive WebGL Visualization How To Install Caveman In Codex On macOS And Windows Automation Pipeline Reliability: Why Your Workflow Breaks When Nobody Is Watching I Built an 'Open World' AI Coding Agent — It Works From ANY Folder From Freelancing to Product: A Tech Service Company's SaaS Transformation China's AI Giants: Adding Tencent Hunyuan & ByteDance Doubao to AI University (74 Providers) On the Vibe Coders and Their Lies clerk: Auto-Summarize Your Claude Code Sessions AI Weekly — 2026/04/10–04/17 | The Model Lockdown Is Here, but the Toolchain Is the Real Battleground AI 週報 — 2026/04/10–2026/04/17 模型封鎖潮來了,但工具鏈才是真戰場 Maybe this is how Open-Source apps are born... 🚀 Fine-Tune LLMs with LoRA and QLoRA: 2026 Guide tRPC v11 + Next.js App Router: End-to-End Type Safety Without the Boilerplate ShadCN UI in 2026: Why I Stopped Installing Component Libraries and Started Owning My Components SaaS Billing in React Server Components: Stripe + Supabase Without a Single `useEffect` Join our DEV Weekend Challenge — $1,000 in Prizes Across TEN winners! Submissions Due April 20 at 6:59 AM UTC. Implementing FSRS Spaced Repetition in Flutter + Supabase — Adding Memory Science to an AI Learning App "I Texted My Localhost From the Train — Claude Code Fixed the Bug Before I Got Home" I Built a Sales Prep AI and It Went Deeper Than Expected Design to Code #2: One JSON, Eleven Outputs Solving the 100M-Row Problem: A Summary Table Pattern for High-Volume Push Notification Logs Flutter Web With Wasm: What Actually Changes For Developers I Built 50 Royalty-Free Soundtracks for My Side Project in a Weekend Using AI Music Generation The Vibe Coding Security Checklist: 7 Things to Check Before You Ship Stop Letting Googlebot Guess Fix Your React App's SEO Right Desconstruindo o Streaming do LinkedIn: Como Criar um Engine de Extração de Vídeo de Alta Performance com HLS e FFmpeg (EDA Part-1) EDA (Exploratory Data Analysis) Explained With Real Life — Why Looking at Your Data Is the Most Important Step in Machine Learning Brand Relationship Management at Scale: Our 4-Touch Outreach System for 200+ Brands Why String.fromEnvironment() Might Return an Empty String in Dart JGuardrails 1.0.0 — Hardening Java LLM Apps Against Jailbreaks, Toxicity, and Prompt Injection Plan and Schedule a Full Week of Threads Content From One Claude Conversation Coding Cat Oran Ep3, Five Tables Changed Everything Updated: BFF Pattern I'm done watching freelancers get buried by 200 proposals. So I'm building the alternative. This is my first post BFS Algorithm in Java Step by Step Tutorial with Examples Tracking LLM Pricing Monthly: An Open Dataset for 22 AI Models How We Measure Content ROI on a Comparison Site: Revenue Attribution Without Perfect Data Introducing Nova AI Ops: The AI-Native Operating System for SRE Teams I built a free desktop video downloader for Windows — Grabbit How Talkie OCR Helps Vision-Impaired & Dyslexic Users Read the World Around Them VRCFaceTracking安装和iPhone面捕配置教程,有bug Even CrowdStrike Can't See Your Agents The Automation Gold Rush: What n8n Workflows and Claude Are Opening Up for Developers Right Now
OG Image Sizes: The Complete Guide for 2026
Corbanware · 2026-05-11 · via DEV Community

Corbanware

OG Image Sizes: The Complete Guide for 2026

Here is the quick answer: 1200 x 630 pixels. If you remember nothing else from this article, remember that number. It works on every major platform without cropping or distortion.

But if you want to understand why, what the edge cases are, and how to avoid the mistakes that make your shared links look broken, keep reading.

Quick Reference Table

Platform Recommended Size Min Size Aspect Ratio Max File Size
Facebook 1200 x 630 600 x 315 1.91:1 8 MB
Twitter/X (large card) 1200 x 628 300 x 157 2:1 5 MB
Twitter/X (summary) 240 x 240 144 x 144 1:1 5 MB
LinkedIn 1200 x 627 200 x 200 1.91:1 5 MB
Slack 1200 x 630 Any 1.91:1 No hard limit
Discord 1200 x 630 Any 1.91:1 8 MB
WhatsApp 1200 x 630 300 x 200 1.91:1 5 MB
iMessage 1200 x 630 Any 1.91:1 No hard limit
Pinterest 1200 x 630 200 x 200 1.91:1 10 MB

Bookmark this table. Reference it when you need it.

Why 1200 x 630 Is the Standard

Back in 2010, Facebook introduced the Open Graph protocol to let websites control how shared links appear in the News Feed. They settled on a roughly 1.91:1 aspect ratio for link preview images. Every other platform that came along afterward -- Twitter, LinkedIn, Slack, Discord -- adopted the same ratio or something close enough that a 1200x630 image displays without issues.

The result: one image at 1200 x 630 works everywhere. You do not need platform-specific images. Period.

Why 1200px wide specifically? Because it renders crisply on high-DPI (Retina) displays. On a standard feed where link cards are displayed at around 600px wide, a 1200px source image means 2x pixel density. Your text stays sharp, your gradients stay smooth.

PNG vs. JPEG: Which Format to Use

  • PNG -- Use for images with text, solid colors, or sharp edges. Most OG images fall into this category.
  • JPEG -- Use for photographic images. JPEG compresses these more efficiently.
  • WebP -- Inconsistent support across platforms. Stick to PNG or JPEG.
  • SVG -- Do not use SVG for OG images. Most platforms will silently ignore it.

The Safe Zone: Where to Place Your Content

Platforms do not all crop identically. Keep all important content within a 60px margin safe zone on all sides. That means your actual content area is roughly 1080 x 510 pixels.

Font Size Matters More Than You Think

OG images are typically displayed at 400-600 pixels wide in feeds. Rules of thumb:

  • Title text: Minimum 48px at 1200px width
  • Description text: Minimum 28px at 1200px width
  • Limit text to 2-3 lines for the title
  • High contrast: White text on dark backgrounds or vice versa

Common Mistakes (and How to Fix Them)

1. Using a square image -- A 1:1 image will get aggressively cropped. Always use 1200 x 630.

2. File size too large -- Aim for under 1 MB. Use TinyPNG or ImageOptim to compress.

3. Relative URLs in the meta tag -- Social platform crawlers need the full absolute URL starting with https://.

4. Caching issues -- Platforms cache OG images aggressively. Use each platform's debugger tool to bust the cache.

5. Missing width and height meta tags -- Providing og:image:width and og:image:height helps platforms render previews faster.

How to Test Your OG Images

  1. Facebook Sharing Debugger -- Paste your URL, click Scrape Again
  2. Twitter Card Validator -- Preview the card rendering
  3. LinkedIn Post Inspector -- Check LinkedIn's cache
  4. opengraph.xyz -- Previews across multiple platforms simultaneously

Automating OG Image Generation

For sites with many pages, manual OG image creation does not scale. Options:

  • @vercel/og -- JSX to PNG on the edge. Free, self-hosted.
  • Cloudinary -- Text overlay capabilities for dynamic transformations.
  • ogimg.xyz -- Dedicated API for OG image generation. Free tier with 50 images/month.
  • Puppeteer/Playwright -- Screenshot approach. Flexible but slow.

The One-Sentence Summary

Use 1200 x 630 pixels, PNG format, under 1 MB, with text inside a 60px safe zone, and always test with platform debugger tools before you ship.


Found this useful? Follow me for more practical web development guides.