Create a page-specific image, publish it at a stable public URL, and add the Open Graph tags to that page’s HTML <head>. For an Indian education site, the markup is the same as for any other site; make the image and language fit the students, parents, or educators the page serves.
What an Open Graph image does
Open Graph metadata describes a web page for rich representations when it is shared. The protocol requires four properties on every page: og:title, og:type, og:image, and og:url. Use website as the general type for a website page; choose a more specific type only when it accurately describes the page. See the Open Graph Protocol.
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The image is only one part of the preview. The title identifies the page, the URL identifies its canonical address, and the type describes the object. Do not rely on the image alone to explain what a course, admissions page, exam guide, or school announcement contains.
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Plan an image system for education pages
Make each image relevant to its page
Choose a visual that helps someone recognize the particular page being shared: for example, a course subject, an admissions topic, or the kind of exam resource the page offers. Google recommends representative images rather than generic choices such as a site logo. It also advises against text-heavy images and extreme aspect ratios, and recommends high resolution where possible. These are image-quality recommendations, not Open Graph-specific Indian requirements; see Google’s image SEO guidance.
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Use a repeatable visual system without making every image identical
A reusable layout can keep course pages, admissions information, exam resources, and learning guides visually consistent. Change the subject, imagery, and any design details to fit each page. Consider how the image reads at small preview sizes and whether it suits the page’s audience and language. The sources do not establish a special Open Graph tag, size, or visual rule for Indian websites; those choices should reflect the site’s actual audience.
Choose and publish the image
- Select the image: Use an image that represents the page, rather than a generic logo or an image whose meaning depends on substantial embedded text.
- Export and host it: Save it in a web-compatible format and place it at a stable, publicly fetchable URL. Check that the URL serves the intended image. The Open Graph guidance cited here does not define platform-specific access, fetching, or caching rules.
- Choose dimensions for the actual sharing destinations: There is no universal image dimension or cross-platform file-size limit established by the sources cited here. Check the current official guidance for the platform where readers will share links. Do not treat the illustrative dimensions in the markup below as a universal standard.
Add Open Graph tags to the page
Put the tags inside the page’s HTML <head>, and replace the example title, canonical URL, image URL, and image description with values for the page being published.
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<head>
<meta property="og:title" content="How to prepare for the entrance examination" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://example.in/guides/entrance-exam" />
<meta property="og:image" content="https://example.in/images/entrance-exam-share.jpg" />
<meta property="og:image:alt" content="A student reviewing an entrance examination study plan" />
<meta property="og:image:type" content="image/jpeg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
</head>The 1200 by 630 values are illustrative example metadata, not a universal recommendation. The protocol supports optional image properties for alternative text, MIME type, width, and height. Set the MIME type and dimensions to match the image you actually publish. The protocol defines og:image:alt as a description of the image’s contents, not a caption, and says to specify it when an og:image is present. Keep the description accurate and useful to someone who cannot see the image.
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A page may declare more than one og:image. The Open Graph Protocol says the first image takes preference when there is a conflict, so put the image you want preferred first. If you provide structured properties such as og:image:alt or og:image:width, place them after the root og:image they describe and before the next root og:image. This keeps each image’s metadata associated with the correct image. See the protocol’s guidance on arrays and structured properties.
Check the page and its preview
- Inspect the rendered page source and confirm the Open Graph tags are inside
<head>. - Open the
og:imageURL and verify it resolves to the intended image without requiring a visitor-specific session. - Check that
og:title,og:url, andog:typedescribe the same page, and that image metadata matches the image file. - Use the target sharing platform’s current preview or debugging facility to inspect the resulting preview. Platform tools and their behavior can change, so confirm their current availability and instructions directly with that platform.
Common problems and fixes
- The preview uses the wrong image: Check that the intended image URL is in the page’s
og:imagetag. If multiple images are declared, review their order because the first is preferred in conflicts. - The image is missing: Confirm the URL points to the image and is publicly fetchable. The cited sources do not specify platform-specific fetch or cache rules, so use the target platform’s current debugging guidance to investigate its behavior.
- The image metadata describes another image: Put each image’s structured properties immediately after its matching
og:imageand before the next image declaration. - The preview is hard to understand at a glance: Choose imagery that represents the specific page, avoid relying on substantial text embedded in the graphic, and check the appearance at preview scale.
- The image looks stretched or poorly suited to a platform: Avoid extreme aspect ratios and consult the platform’s current image guidance. The cited sources do not establish one size that works everywhere.
Or skip the browser setup
You can capture a page screenshot with one request using ScreenshotNeo, a website screenshot API and MCP server. This can help you inspect a page’s visual appearance while preparing its share image; it does not replace creating and adding the page’s Open Graph metadata.
Quick Recap
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cURL:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.in/guides/entrance-exam -o shot.webpPython:
import requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://example.in/guides/entrance-exam"}, timeout=90)
open("shot.webp", "wb").write(r.content)Node.js:
const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://example.in/guides/entrance-exam' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);See the ScreenshotNeo API documentation for request options. It removes cookie banners, newsletter popups, and chat widgets before a shot; bot checks, blank pages, failed loads, and cache hits are not billed. Its MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000. Sign up for free.
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