[Radar] Mention new CT endpoints in both release notes and changelog

Author: andre-j3sus

src/content/changelog/radar/2025-07-01-radar-bots-insights.mdx

@@ -1,6 +1,6 @@
 ---
 title: Bot & Crawler Insights in Cloudflare Radar
-description: Expanded visibility into crawler, referral, and bot activity with new Radar API endpoints.
+description: Expanded visibility into crawler, referral, and bot activity with new Radar API endpoints
 products:
   - radar
 date: 2025-07-01

src/content/changelog/radar/2025-08-04-radar-ct-insights.mdx

@@ -0,0 +1,38 @@
+---
+title: Certificate Transparency Insights in Cloudflare Radar
+description: New Certificate Transparency (CT) insights in Cloudflare Radar, with new API endpoints for certificate issuance trends
+products:
+  - radar
+date: 2025-08-04
+---
+
+[**Radar**](/radar/) now introduces Certificate Transparency (CT) insights, providing visibility into certificate issuance trends based on Certificate Transparency logs currently monitored by Cloudflare.
+
+The following API endpoints are now available:
+
+- [`/api/v1/ct/timeseries`](/api/resources/radar/subresources/ct/methods/timeseries/): Retrieves certificate issuance time series.
+- [`/api/v1/ct/summary/{dimension}`](/api/resources/radar/subresources/ct/methods/summary/): Retrieves certificate distribution by dimension.
+- [`/api/v1/ct/timeseries_groups/{dimension}`](/api/resources/radar/subresources/ct/methods/timeseries_groups/): Retrieves time series of certificate distribution by dimension.
+- [`/api/v1/ct/authorities`](/api/resources/radar/subresources/ct/methods/authorities/): Lists certification authorities.
+- [`/api/v1/ct/authorities/{ca_slug}`](/api/resources/radar/subresources/ct/methods/authorities/): Retrieves details about a certification authority. Certification Authority information is derived from the [Common CA Database (CCADB)](https://www.ccadb.org/).
+- [`/api/v1/ct/logs`](/api/resources/radar/subresources/ct/methods/logs/): Lists CT logs.
+- [`/api/v1/ct/logs/{log_slug}`](/api/resources/radar/subresources/ct/methods/logs/): Retrieves details about a CT log (from Google Chrome log list). CT log information is derived from the [Google Chrome log list](https://googlechrome.github.io/CertificateTransparency/log_lists.html).
+
+For the `summary` and `timeseries_groups` endpoints, the following dimensions are available (and also usable as filters):
+
+- `ca`: Certification Authority (certificate issuer)
+- `ca_owner`: Certification Authority Owner
+- `duration`: Certificate validity duration (between NotBefore and NotAfter dates)
+- `entry_type`: Entry type (certificate vs. pre-certificate)
+- `expiration_status`: Expiration status (valid vs. expired)
+- `has_ips`: Presence of IP addresses
+- `has_wildcards`: Presence of wildcards
+- `log`: CT log
+- `log_api`: CT log API ([RFC6962](https://datatracker.ietf.org/doc/html/rfc6962) vs. [Static](https://c2sp.org/static-ct-api))
+- `log_operator`: CT log operator
+- `public_key_algorithm`: Public key algorithm
+- `signature_algorithm`: Signature algorithm
+- `tld`: Top-level domain
+- `validation_level`: Validation level
+
+Learn more about the new Certificate Transparency insights in our [blog post](https://blog.cloudflare.com/new-ct-section-on-cloudflare-radar/), and check out the [new Radar page](https://radar.cloudflare.com/certificate-transparency).

src/content/release-notes/radar.yaml

@@ -5,8 +5,12 @@ productLink: "/radar/"
 productArea: Developer platform
 productAreaLink: /workers/platform/changelog/platform/
 entries:
+  - publish_date: "2025-08-04"
+    title: Add Certificate Transparency (CT) endpoints
+    description: |-
+      * Added [CT endpoints](/api/resources/radar/subresources/ct/).
   - publish_date: "2025-07-01"
-    title: Add Bots and Web Crawlers Endpoints
+    title: Add Bots and Web Crawlers endpoints
     description: |-
       * Added new [bots endpoints](/api/resources/radar/subresources/bots/), replacing the deprecated verified bots
       endpoints. Use the following replacements: