Open Graph monitoring Heads-up

A shared link that reads “Untitled” is a change nobody caught

Open Graph tags are independent of the <title>, so a template change can rewrite or drop them without touching anything a search crawler would flag. The first sign is usually a link in Slack that looks wrong.

Heads-up severity: batched into your daily digest, because this costs clicks rather than indexation.

Wygard alert detail

What it may cost you

Nothing about the page changes on screen. Only the preview does — on every platform at once.

Every share looks broken at the same time

Facebook, LinkedIn, Slack and WhatsApp read the same tags. One template change degrades all of them in a single deploy.

The fallback is rarely flattering

With og:title missing, platforms fall back to the page title or the bare URL. Campaign links stop looking like campaign links.

Nobody owns the check

Social previews sit between marketing and engineering. They are inspected when someone complains, which is well after the sharing happened.

How an alert reaches you

Three steps, running every day, on something nobody looks at twice a year.

1 Every run

Baseline stored

The first crawl saves the four Open Graph tags on the monitored URL as it should be. That value is what every later run is compared against.

2 Next morning

Change detected

Each enabled og: tag is extracted from <head> and compared, checking there is exactly one of it.

3 Daily digest

Alert in your digest

Heads-up findings are batched into one email, so this never buries an alert that needed you an hour ago.

You decide what counts as broken

The stored value is your desired state, not a guess. When a later run differs you get both versions side by side — and if the change was intentional, one click adopts it as the new baseline.

Severity matches the damage

This one waits for the daily digest by default, so it never competes with an alert that needed you immediately. Raise it to Danger per site if it matters more to you.

Set it once, then leave it

Pick the frequency and the user agent Wygard should send, switch on JS rendering if your pages need it, and the rest needs no attention.

What we check

Four checks, off by default and bundled as one selection group so you can turn them on together.

Test What it catches Scope Severity
og:title The headline shown when the URL is shared changed, disappeared, or appeared twice. URL · Basic Heads-up
og:description The preview text under the headline drifted from what you shipped. URL · Basic Heads-up
og:image The preview image reference changed or was removed. URL · Basic Heads-up
og:url The canonical address the preview points at changed. URL · Basic Heads-up

Questions about open graph monitoring

What the checks do, and what they don’t.

Do I have to enable all four

No, but they ship as a selection group so one click covers the whole set. Individual tests can stay off.

Are Twitter cards covered

Not yet — twitter:* tags are on the roadmap. Most platforms fall back to Open Graph in the meantime.

Why Heads-up rather than Danger

A broken preview costs engagement on shared links, not indexation. It is worth reviewing in the daily digest.

“This app has completely transformed how we manage our SEO. The real-time alerts ensure we never miss an issue. It's a game-changer for protecting our rankings!”
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