Your homepage links to your official profiles on at least three major platforms
Do you give AI systems three or more cross-references they can use to verify your identity?
What this signal tests
We check whether your homepage's identity card links to your official profiles on at least three of the major platforms AI systems trust: LinkedIn, X (Twitter), GitHub, YouTube, Facebook, Instagram, Mastodon, or Bluesky. Each link must resolve to a real, public profile. The more cross-references, the more confident AI is that the same entity owns every surface.
Why it matters for your visibility in AI
Identity is corroborated through cross-references. A website by itself proves only that someone owns a domain. The same name appearing on LinkedIn, GitHub, and YouTube, with each profile pointing back to the website, is far stronger evidence that you are who you claim to be. The consequence shows up in everyday queries. Imagine a developer asks Claude "is the Acme Robotics that publishes those papers the same as the one selling consumer drones?" If your homepage links to your LinkedIn, your GitHub organization, and your YouTube channel, the assistant can confirm the connection in seconds. Without those links, AI may treat your research arm and your product arm as separate entities, or merge you with a similarly-named competitor.
Pass criteria at a glance
| Criterion | Passes when |
|---|---|
| >=3 distinct platforms resolving 200. |
How we test it
We parse your Organization JSON-LD sameAs array and match each URL against an allowlist of known social-platform patterns (LinkedIn company or personal pages, X/Twitter handles, GitHub orgs or users, YouTube channels, Facebook pages, Instagram, Mastodon, Bluesky). We then fetch each matched URL to confirm the profile actually exists and is public. We count the number of distinct platforms with a working profile; if fewer than three resolve, the signal fails.
Show technical detection method
Match against allowlist (linkedin.com/(company|in)/..., (twitter|x).com/..., github.com/..., youtube.com/(@|channel/|c/|user/)..., etc.); each resolves 200.
If your site fails: how to fix it
- List the platforms where your organization has an official, claimed presence; prioritize LinkedIn (company page) and at least one of X, YouTube, or GitHub depending on your audience.
- Copy the exact canonical URL for each profile, for example linkedin.com/company/your-name, not the personal page of a single employee.
- Add each URL as a string in the sameAs array of your Organization JSON-LD; an array of three to eight URLs is typical for a well-disambiguated brand.
- Verify each profile is public (not behind a login wall) and that the profile description points back to your primary website.
- Avoid linking to abandoned or imposter accounts; AI systems may downweight your identity if a stale profile contradicts your homepage facts.
Quick facts
| Maturity | ESTABLISHED |
|---|---|
| Weight | high |
| Category | Entity |
Primary sources
Related signals
Frequently asked questions
What if my business is not really active on social media?
You do not need to be active, only to have claimed and lightly-maintained profiles. A LinkedIn company page with your address and a logo, plus a GitHub org or a YouTube channel page, satisfies the threshold even if you post nothing.
Do I need exactly three platforms or more?
Three is the pass threshold. More is better up to about eight; beyond that you see diminishing returns. Choose the platforms where your industry's authority is concentrated (GitHub for software, LinkedIn for B2B, YouTube for media, Instagram for consumer brands).
Does a personal Twitter account count for my company?
Not really. The signal looks for official organization or brand profiles, not employee accounts. For a one-person business or solo author, your personal LinkedIn and X profiles are fine; for a company, use the company pages.
What about TikTok, Pinterest, or other platforms?
The current allowlist focuses on platforms most heavily indexed by AI systems and Google's Knowledge Graph. Other platforms are not penalized, but they will not count toward the three-platform threshold.
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