Preview reliability, not guesswork
See missing Open Graph tags, duplicate metadata, ordering problems, and image issues in one report instead of manually digging through raw HTML.
Metadata repair for serious link previews
Stop shipping broken link previews.
Fixheader audits a page's <head>, exposes what breaks rich previews,
and generates corrected metadata you can deploy fast. Built for operators who care about
iMessage, OG tags, and pages that unfurl the way they should.
- Finds missing, duplicate, and conflicting tags
- Reorders metadata so scrapers see it early
- Generates corrected head and full HTML output
$ fixheader https://example.com
status=200
issues=4
builder=Webflow
- Missing OG tag: og:site_name
- Duplicate OG tag: og:title
- Ordering issue detected
- og:image is not HTTPS
Corrected head ready to deploy.Why it matters
When a link preview looks broken, the page feels broken. Fixheader cleans up the part most teams never inspect.
Built for lean product teams
CLI-first and automation-friendly
Focused on preview quality, not generic SEO fluff
What it does
Fix the exact part of the page that decides how your link looks.
Deployable fixes, instantly
Get a corrected <head> block and a corrected full HTML page so you can
ship a fix instead of just reading a warning.
Built for real-world mess
Detects common builder interference, handles redirects, and keeps metadata close to the top of the document where scrapers are most likely to catch it.
Workflow
From broken preview to corrected output in three steps.
Audit a URL
Point Fixheader at a page and fetch the live head metadata with redirect awareness.
Inspect the issues
Review missing tags, builder interference, media validation, and ordering problems.
Ship the correction
Use the corrected head or full page output to patch the live site or deployment pipeline.
Who it is for
Lean teams that need previews to look professional without building a whole SEO stack.
Agencies
Audit client pages quickly and prove what is broken before launch or handoff.
Founders
Catch metadata problems before a launch post, DM share, or press mention falls flat.
Operators
Use JSON output and corrected HTML in QA, CI, or repeatable site-fix workflows.
Built for real operations
A focused tool with a narrow job, clear workflow, and human support behind it.
Operator-first product
Fixheader is built around a practical workflow: inspect a URL, see what is broken, and generate corrected output you can actually ship.
Early-access support
Early users get direct support, a growing FAQ base, and product updates shaped by real metadata and preview problems.
Business-ready foundation
The launch setup includes formal onboarding, support workflows, and a plan for licensing, billing, and international sales.
FAQ
The first questions most people ask.
Does Fixheader host my site?
No. It audits your page and generates corrected output you can deploy through your existing stack.
Is it only for iMessage?
No. iMessage is a strong use case, but the metadata checks are useful for rich previews more broadly.
Do I need to understand raw HTML?
Not deeply. The goal is to translate head metadata problems into a report and corrected output you can use.
Can this fit into automation or CI?
Yes. The CLI already supports JSON output and quiet mode, which makes it easier to plug into tooling.
Early access
Get Fixheader launch updates and early access.
The product is being shaped around real preview failures, fast support loops, and a simple operator workflow. If you want in early, this is the place to start.