---
title: TLD Nameserver Performance in Cloudflare Radar
description: New TLD nameserver performance insights in Cloudflare Radar, including latency metrics, per-nameserver breakdowns, and geographic distribution
image: https://developers.cloudflare.com/changelog-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/changelog/llms.txt  
> Use this file to discover all available pages before exploring further.

[Skip to content](#%5Ftop) 

# Changelog

New updates and improvements at Cloudflare.

[ Subscribe to RSS ](https://developers.cloudflare.com/changelog/rss/index.xml) [ View RSS feeds ](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) 

![hero image](https://developers.cloudflare.com/_astro/hero.CVYJHPAd_26AMqX.svg) 

[ ← Back to all posts ](https://developers.cloudflare.com/changelog/) 

## TLD Nameserver Performance in Cloudflare Radar

May 06, 2026 

[ Radar ](https://developers.cloudflare.com/radar/) 

[**Radar**](https://developers.cloudflare.com/radar/) now provides TLD authoritative nameserver performance insights, measuring response time (latency) as observed from Cloudflare's [1.1.1.1](https://developers.cloudflare.com/1.1.1.1/) resolver infrastructure when forwarding queries upstream to TLD nameservers.

New widgets on [TLD detail pages ↗](https://radar.cloudflare.com/tlds/com):

* [**Aggregate nameserver latency** ↗](https://radar.cloudflare.com/tlds/com#tld-ns-latency): Response time percentiles (p25/p50/p75) for all authoritative nameservers of the selected TLD.
* [**Latency per nameserver** ↗](https://radar.cloudflare.com/tlds/com#tld-ns-latency-by-ns): Median response time (p50) broken down by each authoritative nameserver over time.
![Latency per nameserver chart](https://developers.cloudflare.com/_astro/tld-nameserver-latency-by-ns.CZGT23Vk_1uDLsk.webp) 
* [**Median latency geographic distribution** ↗](https://radar.cloudflare.com/tlds/com#geographical-distribution): p50 response time by Cloudflare data center country, displayed on a choropleth map.
* [**TLD ranking over time** ↗](https://radar.cloudflare.com/tlds/com#tld-ranking): Daily DNS magnitude rank and magnitude value with a Rank/Magnitude toggle.
* [**Rank change deltas** ↗](https://radar.cloudflare.com/tlds): 1 week, 4 weeks, and 3 months rank changes added to the TLD magnitude table and the TLD detail info panel.
![TLD Rankings by DNS Magnitude table with rank change deltas](https://developers.cloudflare.com/_astro/tld-magnitude-rank-deltas.BaT-jII__14jlCV.webp) 

The new [TLD Performance](https://developers.cloudflare.com/api/resources/radar/subresources/tlds/subresources/performance/) API provides the following endpoints:

* [/tlds/performance/summary/{dimension}](https://developers.cloudflare.com/api/resources/radar/subresources/tlds/subresources/performance/methods/summary/) — TLD nameserver performance summarized by dimension.
* [/tlds/performance/timeseries\_groups/{dimension}](https://developers.cloudflare.com/api/resources/radar/subresources/tlds/subresources/performance/methods/timeseries%5Fgroups/) — TLD nameserver performance over time grouped by dimension.

Available dimensions: `LATENCY` (aggregate p25/p50/p75), `NAMESERVER_LATENCY` (per-nameserver p50), `LOCATION_LATENCY` (per-data-center-country p50).

TLD Performance is also available as a dataset in the [Data Explorer ↗](https://radar.cloudflare.com/explorer?dataSet=tlds.performance).

Check out the updated [TLD detail page ↗](https://radar.cloudflare.com/tlds/com).