David Belson (@[email protected])

New on Cloudflare Radar: MRT Explorer! BGP is how networks tell each other where to send Internet traffic. MRT files record those routing updates, helping investigate outages and route leaks. Now you can inspect them directly in your browser: radar.cloudflare.com/routing/mrt-ex…

@svensauleau Odd set of options there, since Linode isn't a CDN provider (and hasn't been an independent company for several years). Similarly, OpenDNS was folded into Cisco years ago, so the "DNS Provider" set is questionable as well.

peaktoken.ai/questions/0/wh… by far Cloudflare's the best cdn

I asked 72 AI models which brands are best peaktoken.ai

@andy_champagne Thank you!

@dbelson Sorry to hear this David. Your work was strong!

I was one of the 1100 impacted by yesterday's layoff at @cloudflare. Thankful that I had the opportunity to work on @CloudflareRadar over the past 4+ years, evolving it into a trusted industry resource. Would love to continue working with #Internet data in my next role...

Radar now tracks TLD nameserver performance. Use the new TLD Performance API to query latency data. developers.cloudflare.com/changelog/post…

DNSSEC failure broke the .de TLD, risking millions of German domains. See how 1.1.1.1 used "serve stale" and Negative Trust Anchors to restore resolution during the incident. Read the full technical breakdown. cfl.re/4tkozsg

🚀 @CloudflareRadar two new #BGP features 1. country-level announced IP space charts now supports breaking down by top ASes. 2. RPKI ROA coverage time-series by IP space or prefixes. All widgets are built with public Radar APIs. More details at developers.cloudflare.com/changelog/post…

More great new data on @CloudflareRadar -- check out the whole thread. The TLD nameserver performance insights can help troubleshoot DNS issues.

The first quarter of 2026 was a busy one for significant #Internet shutdowns, outages, and other disruptions, and @CloudflareRadar has a unique perspective on their impact. Our latest blog post digs into these events globally. Learn more at blog.cloudflare.com/q1-2026-intern…

Interesting observation: Sunday-Thursday each week, between 0900-2000 UTC, Googlebot appears to ramp up its crawling of plain text files. A similar pattern is visible for JavaScript files as well, Monday-Thursday, between 1600-1200 UTC. #content-type" target="_blank" rel="nofollow noopener">radar.cloudflare.com/bots/directory…

We've also extended bot traffic visibility on Radar to support sub-national filters. Radar now shows bot traffic trends and which networks generate the most bot traffic from your state/region. Examples: radar.cloudflare.com/bots/2267056 radar.cloudflare.com/bots/5549030

Cloudflare Radar is a rich source of BGP and routing insights and data. To recognize its importance, we've broken out "Routing" into its own section, featuring Overview, RPKI, and Anomalies pages, with more to come very soon. Explore for yourself at radar.cloudflare.com/routing

.@accessnow and the #KeepItOn coalition’s new report: Rising repression meets global resistance: Internet shutdowns in 2025 is live! 2025 saw a record-high 313 shutdowns across 52 countries. At the same time, the resistance + people power was loud! 📣 ▶️accessnow.org/internet-shutd…

NEW | 2025 was a record year for internet shutdowns — 313 times. Authorities imposed shutdowns to control information and restrict access. The #KeepItOn coalition spent last year documenting shutdowns across the world. These are the findings ⬇️ 🧵

New experimental feature: parsing MRT files directly on local browser with @bgpkit parser WASM package! You can pass it a remote MRT file link, or drag and drop a local MRT file. Go test it out yourself! #BGP mrt-explorer.labs.bgpkit.com

Speed test results are now shared between speed.cloudflare.com and radar.cloudflare.com/speedtest. Detailed results are shown on Speed, while summary and country/network comparisons are shown on Radar, and users can now easily switch between the two views.

Come on ARIN networks, you can do it! #BGP #RPKI #ASPA #rpki-aspa-deployment" target="_blank" rel="nofollow noopener">radar.cloudflare.com/routing?dateRa…

@CloudflareRadar In the backend, it uses the prefix-to-asn mapping with longestPrefixMatch enabled. Here is the free Radar API that does the lookup: developers.cloudflare.com/api/resources/…

Tip of the day: on @CloudflareRadar you can type in individual IPs for the prefix page URL and it'll redirect you automatically to the longest-prefix match prefix's page. Here is an example for 1.1.1.1 radar.cloudflare.com/routing/prefix… #BGP

A new analysis by Miaan, ASL19, Kentik, IODA, Cloudflare, Holistic Resilience, and DeltaChat shows that after the Feb 28 US–Israeli strikes, Iran shifted to a whitelisted internet model: only selected domestic services remain accessible while global connectivity is restricted to vetted users via “white SIM cards” and costly “Pro Internet” plans—turning internet access into a traceable, pay-to-connect privilege. filter.watch/english/2026/0…