SEO REVIEW LAB / OPEN GRAPH PREVIEW

Open Graph Preview

Create escaped Open Graph website tags and review the supplied title, description, site name, URL, and optional image reference in one card.

Runs in this browser tabNo account requiredOne page URL and optional image URL up to 500 characters, site name up to 100, title up to 200, and description up to 500.

Step 1 / Build the brief

Prepare the social object metadata

5 fields

Use final public values for the destination page. The image field is treated as a text reference and is never fetched into this browser.

01Canonical page URLUse the final absolute HTTP or HTTPS destination.Required02Site nameUse the concise public name of the site or publication.Required03Share titleDescribe the destination accurately for someone seeing a shared link.Required04Share descriptionSummarize the useful content without unsupported claims.Required05Image URLOptionally reference a public HTTP or HTTPS image. Nirmion will not fetch it.Optional

Before generationThe result includes og:type, og:url, og:site_name, og:title, og:description, and og:image only when an image URL is supplied.

Checking database publication status before enabling this workspace.

No crawl or upload

The entered brief is processed in this browser tab. These tools do not crawl the supplied URL, fetch remote images, or send the draft to Nirmion.

Transparent transformation

The workspace uses visible rules, length counts, URL parsing, and standards-shaped templates rather than hidden ranking scores or unverified AI claims.

Human approval required

A technically valid draft can still be inaccurate for a page, campaign, platform, or policy. Test the result and obtain the appropriate approval before release.

Plain-language guide

How the Open Graph source is created

The browser validates HTTP and HTTPS URLs, escapes ampersands, quotes, angle brackets, and other attribute-sensitive characters, then writes one meta tag per supplied property. The card uses local CSS rather than contacting a social network, reading page headers, downloading an image, or reproducing platform-specific cropping and cache behavior.

01
Start with verified inputs
Use the canonical public URL, stable site name, accurate share title and description, and a public image URL that your delivery platform can access.
02
Understand the transformation
Nirmion validates the URL shape, escapes every attribute value, and creates the basic website object tags defined by the supplied fields.
03
Test the destination
Insert the reviewed tags into the HTML head, deploy the public image with suitable dimensions and headers, and use each destination platform debugger to refresh and inspect its cache.

Useful when

Practical jobs this tool supports

Prepare social metadata for a campaign landing page.
Review escaping before adding user-supplied wording to meta tags.
Hand developers a copyable HTML block with an approved content brief.

Release check

Test the deployed page, not only the mock

Platforms can cache old tags, choose different images, crop media, or apply their own text limits. The public response is the real source of truth.

The URL is canonical and publicly reachable.
The title and description accurately represent the destination.
The image URL is public, durable, and approved for sharing.
The deployed tags are tested with relevant platform tooling.

Important boundary

No platform rendering is guaranteed

Open Graph defines metadata for graph objects, but each consumer controls support, cache timing, image processing, layout, and fallbacks. This local card cannot certify a Facebook, LinkedIn, Slack, or messaging-app result.

Read the official Open Graph protocol

Questions before publishing

What a careful user should know

The generator focuses on safe source preparation while leaving network and platform checks to the deployment workflow.

Does Nirmion download the image?

No. The optional image URL is displayed as text and written to the tag only.

Why is the tag content escaped?

Quotes, ampersands, and angle brackets must not break the HTML attribute containing the supplied value.

Will every platform use all these tags?

No. Consumers differ in supported properties, cache behavior, fallbacks, image rules, and card layouts.