lastReviewed

lastReviewed · Not mentioned by Google

Appears in

• MedicalWebPage

What is it?

The date when the content on a web page was last checked for accuracy and completeness by a qualified reviewer. For medical web pages, lastReviewed records when a healthcare professional or editorial board verified that the health information is still current and correct. This is distinct from dateModified, which tracks any content change; lastReviewed specifically signals a deliberate accuracy review.

Why this matters for AEO

Medical information becomes outdated as new research emerges, guidelines change, and drugs get approved or withdrawn. AI answer engines weigh content freshness heavily for health queries. When a user asks "what are the current diabetes treatment guidelines?", the AI checks lastReviewed to determine whether the source reflects recent medical consensus. A page reviewed in 2024 outranks one last reviewed in 2018, even if both were technically modified recently.

What the specs say

Schema.org: Date. Date on which the content on this web page was last reviewed for accuracy and/or completeness. schema.org/lastReviewed

Google: Not mentioned. No dedicated Google structured data page exists for MedicalWebPage.

How to find your value

• Page header/footer — "Medically reviewed on [date]" text
• CMS metadata — Content review date field in the editorial workflow
• Editorial calendar — Scheduled review dates for health content
• Review sign-off — Internal document management system

Format and code

Use ISO 8601 date format: YYYY-MM-DD.

{
  "@context": "https://schema.org",
  "@type": "MedicalWebPage",
  "name": "Understanding Beta-Blockers for High Blood Pressure",
  "lastReviewed": "2024-12-01",
  "reviewedBy": {
    "@type": "Person",
    "name": "Dr. James Chen, MD, FASAM"
  },
  "specialty": "https://schema.org/Cardiovascular"
}

Webflow implementation

Static pages

Add the review date in the JSON-LD block in Page Settings > Custom Code:

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "MedicalWebPage",
  "name": "Health Topic",
  "lastReviewed": "2024-09-15",
  "reviewedBy": {"@type": "Person", "name": "Dr. Name, MD"}
}
</script>

CMS template pages

Create a date field called "Last Reviewed" in your health articles CMS collection. This should be separate from the Webflow "Published" or "Updated" dates since it tracks a different event. Reference it in the JSON-LD embed.

In Schema HQ

Your review date CMS field to lastReviewed, formatting it as ISO 8601 automatically. is mapped automatically

Real examples

Schema.org official MedicalWebPage example:

{
  "@context": "https://schema.org",
  "@type": "MedicalWebPage",
  "about": {
    "@type": "MedicalCondition",
    "name": "High Blood Pressure"
  },
  "audience": "https://schema.org/Patient",
  "lastReviewed": "2011-09-14",
  "name": "beta-blocker",
  "specialty": "https://schema.org/Cardiovascular"
}

MedicallyReviewed.com:

{
  "@type": "MedicalWebPage",
  "lastReviewed": "2024-12-01",
  "reviewedBy": {
    "@type": "Person",
    "name": "Dr. James Chen, MD, FASAM",
    "jobTitle": "Medical Director, Addiction Medicine"
  }
}

Related fields

• reviewedBy
• medicalAudience
• specialty
• dateModified
• datePublished

FAQ

How is lastReviewed different from dateModified?

dateModified records when the page content was changed for any reason (typo fix, layout update, new section added). lastReviewed records when a qualified person deliberately verified the content's accuracy. A page can be modified without being reviewed, and vice versa. For medical content, lastReviewed carries significantly more trust weight.

How often should lastReviewed be updated?

Health content organizations typically review medical pages every 1 to 3 years, or sooner when significant guideline changes occur. The date should only be updated when an actual clinical review takes place, not when minor editorial changes are made. Updating the date without a genuine review is misleading.

Is lastReviewed only for medical content?

lastReviewed is defined on WebPage, not just MedicalWebPage, so it can be used on any web page. However, its practical value is strongest for health, legal, and financial content where accuracy reviews are a recognized editorial practice.