Get VFD Verified
If your company is listed in the Vertical Farming Directory, add one line of HTML to your homepage. That's all it takes to receive a ✓ VFD Verified marker on your directory profile.
No account. No token. No registration.
Just add the tag to your homepage. Our crawler detects it automatically during the next weekly run.
The verification tag
Add the following line inside the <head> section of your homepage:
<!-- VFD verification tag — place inside <head> --> <meta name="vfd:status" content="active">
That's it. The crawler visits your homepage once per week and checks for this tag. If found, your directory profile is marked as VFD Verified.
Platform instructions
WordPress
Add to your theme's header.php inside the <head> tag, or use a plugin like Insert Headers and Footers to add it without editing theme files.
Wix
Go to Settings → Custom Code → Add Code to Pages → Head. Paste the tag, set it to "All Pages" and "Head" position.
Squarespace
Go to Settings → Advanced → Code Injection → Header. Paste the tag there.
Webflow
Go to Project Settings → Custom Code → Head Code. Paste the tag.
Any HTML site
Open your index.html, find </head>, and paste the tag on the line before it.
After adding the tag
No further action needed. The crawler detects the tag automatically during the next weekly run (every Monday). There is no manual verification step and no confirmation email.
Your directory profile on verticalfarming.directory will show a ✓ VFD Verified marker after the next crawl has completed.
Frequently asked questions
Is this required to stay listed?
No. Adding the tag is optional. Free listings remain in the directory regardless. The tag only adds a verified signal to your profile.
Does the tag affect my SEO?
No. The vfd:status meta tag has no effect on search engine rankings — search engines ignore unknown meta names.
What data does the crawler collect?
Only publicly visible signals: HTTP status, response time, and whether your homepage contains the VFD tag. We do not store page content or index your pages.
How do I opt out of crawling?
Add the following to your robots.txt:
User-agent: VFD-Checker Disallow: /
Opted-out domains are marked as crawl-blocked and will not be classified as inactive.