OG Check: AdventJS - JavaScript, TypeScript and Python coding challenges every day of December — Open Graph Results

Showing cached results. Last scanned: just now · Feb 17, 2026 3:51 PM Rescan

Results for adventjs.dev

Several issues found. Fixing them will significantly improve your social media presence. Found 1 error and 2 warnings.

1 error 2 warnings 2 tips

OG Image

1200×630px

Analysis (5 issues)

og:image is broken or unreachable

The og:image URL (https://adventjs.dev/og.jpg) does not return a valid image when loaded from an external site. The server may be returning an error, blocking external referrers (hotlink protection), or returning a non-image content type. Social platforms will show a broken or missing image preview.

⚠

Title is too long (84 chars)

Titles longer than 60 characters may be truncated on social platforms. Recommended: 50-60 characters.

⚠

HTML title is too long (125 chars)

Google typically displays the first 50-60 characters. Titles over 70 characters will be truncated in search results.

ℹ

Canonical URL differs from page URL

The canonical URL (https://adventjs.dev/en) points to a different URL. Make sure this is intentional — it tells search engines to index the canonical URL instead.

ℹ

No SVG favicon found

SVG favicons scale perfectly at any size and support dark mode via CSS media queries. Modern browsers support them natively.

<link rel="icon" type="image/svg+xml" href="/favicon.svg" />

Scan History (10)

Date	Score	Change
Feb 17, 2026 · 3:51 PMLatest	52	—	Viewing
Feb 17, 2026 · 10:56 AM	52	—	View
Feb 17, 2026 · 10:56 AM	52	—	View
Feb 17, 2026 · 10:56 AM	52	—	View
Feb 17, 2026 · 10:56 AM	52	-15	View
Feb 17, 2026 · 10:55 AM	67	—	View
Feb 17, 2026 · 10:55 AM	67	-15	View
Feb 17, 2026 · 10:55 AM	82	—	View
Feb 17, 2026 · 10:53 AM	82	—	View
Feb 17, 2026 · 10:53 AM	82	—	View

Meta Tags

Meta Tags Found

<!-- HTML -->
<title>AdventJS - JavaScript, TypeScript and Python coding challenges every day of December</title>

<!-- Open Graph -->
<meta property="og:type" content="website" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://adventjs.dev/en" />
<meta property="og:title" content="AdventJS - JavaScript, TypeScript and Python coding challenges every day of December" />
<meta property="og:description" content="JavaScript, TypeScript and Python coding challenges every day of December. Learn and have fun with AdventJS coding challenges!" />
<meta property="og:image" content="https://adventjs.dev/og.jpg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
<meta property="og:image:alt" content="AdventJS - Coding Challenges" />
<meta property="og:site_name" content="AdventJS" />
<meta property="og:locale" content="en_US" />
<meta property="og:locale:alternate" content="es_ES" />
<meta property="og:locale:alternate" content="en_US" />
<meta property="og:locale:alternate" content="pt_PT" />
<meta property="og:locale:alternate" content="ja_JP" />

<!-- Twitter -->
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:url" content="https://adventjs.dev/en" />
<meta name="twitter:title" content="AdventJS - JavaScript, TypeScript and Python coding challenges every day of December" />
<meta name="twitter:description" content="JavaScript, TypeScript and Python coding challenges every day of December. Learn and have fun with AdventJS coding challenges!" />
<meta name="twitter:image" content="https://adventjs.dev/og.jpg" />
<meta name="twitter:image:alt" content="AdventJS - Coding Challenges" />
<meta name="twitter:creator" content="@midudev" />
<meta name="twitter:site" content="@midudev" />

<!-- Other -->
<meta name="viewport" content="initial-scale=1.0, width=device-width" />
<meta name="msapplication-TileColor" content="#0a6f40" />
<meta name="msapplication-TileImage" content="/ms-icon-144x144.png" />
<meta name="theme-color" content="#0a6f40" />
<meta name="title" content="AdventJS - JavaScript, TypeScript and Python coding challenges every day of December" />
<meta name="description" content="JavaScript, TypeScript and Python coding challenges every day of December. Learn and have fun with AdventJS coding challenges!" />
<meta name="keywords" content="javascript, typescript, python, coding challenges, advent calendar, programming, web development, learn javascript, midudev" />
<meta name="author" content="midudev" />
<meta name="robots" content="index, follow" />
<meta name="language" content="English" />
<meta name="revisit-after" content="1 day" />
<meta name="theme-color" content="#8c2835" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="apple-mobile-web-app-title" content="AdventJS" />
<meta name="application-name" content="AdventJS" />
<meta name="format-detection" content="telephone=no" />

Social Previews

Google

adventjs.dev

AdventJS - JavaScript, TypeScript and Python coding challenges every day of December

JavaScript, TypeScript and Python coding challenges every day of December. Learn and have fun with AdventJS coding challenges!

X / Twitter

adventjs.dev