Top all-time · #5883
Cisco Umbrella
Company blog · umbrella.cisco.com/blogsecurity
Cisco Umbrella is the company blog at umbrella.cisco.com, writing about security. Since 2016, 14 different Hacker News readers have linked it 15 times, most often “Cisco Umbrella 1M top domains”. It is still writing: the last post was on 2026-09-08, and you can follow it by feed.
Too few sampled comments (9) to say how often HN recommends it.?
Why HN links it
HN comments link Cisco Umbrella pages as sources on OpenDNS history, such as its 2008 NXDOMAIN redirection and the origin of Google Public DNS, and on its domain popularity list. No comment judges the writing.
Summarised by Claude from a sample of 9 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Cisco's enterprise network security provides advanced protection on a unified, cloud-delivered solution designed for the modern workplace.
Most-linked posts?
- Cisco Umbrella 1M top domains2 people · 2 mentions · first linked 2022-01-03
What Hacker News says?
Long back when this started, OpenDNS was the largest public DNS provider. And I know at one point they started "hijacking" google requests - you can read this here : http://www.dslreports.com/forum/r21284386-Google-Com-Hijacke... . This was in 2008. They used to also hijack DNS requests to show their own ads. And i am pretty sure many ISPs always played around with DNS in this way. In 2009, Google launched its own P…
Comment linking /blog/2014/05/29/no-more-ads/
on “DNS Performance compared: CloudFlare 1.1.1.1 x Google 8.8.8.8 x Quad9 x OpenDNS”Submitted Changing the Standard of Phishing: Attack Trends,Tips and Tricks as a story · 4 points
HN discussionI think you are right. Reminds me of the story behind "Google Public DNS". Back in 2008/2009, OpenDNS was hijacking "queries" (NXDOMAIN) typed in the address bar to their own search page ("OpenDNS Guide", or some such) on an opendns.com subdomain. In response, Google launched its own open resolver.^1 (OpenDNS was later acquired by Cisco) 1. http://umbrella.cisco.com/blog/opendns-google-dns
Comment linking /blog/opendns-google-dns
on “Chromium's Impact on Root DNS Traffic”Submitted 50% Women Speakers at BSidesNYC as a story · 3 points
HN discussionIt's issued by GTS CA 1O1 for me. Umbrella sounds like a security thing on your network: https://umbrella.cisco.com/
Comment linking /
on “The Dunant subsea cable”Submitted Free eBook Ransomware Defense for Dummies-New and Improved for 2020 as a story · 2 points
HN discussion"The DNS was co-opted in this effort and OpenDNS tried to achieve this with a recursive resolver that performed NXDOMAIN redirection into a search engine, in a reprise of Sitefinder. For a short period, OpenDNS also redirected the domain name www.google.com to a different search engine." Well this is false, and misleading. The connection to Sidefinder is a red herring -- sitefinder was applied Internet-wide, OpenDNS…
Comment linking /blog/2007/05/22/google-turns-the-page/
on “DNS Wars”Submitted A Wretched Bin of Scum and Villainy as a story · 2 points
HN discussionThis is a breakdown of some issues many people have with Google's Privacy Policy for their DNS. Temporarily Logs (2 days): - Google logs the IP address of every device sending a DNS query. - For DNS-over-HTTPS, logs Content-Type & Accept HTTP headers Permanently Logs: - Client's autonomous system number - User's geolocation within 1 km^2 and 1000 people. - Timestamp - Requested Domain Name - Request Domain type - Tr…
Comment linking /blog/privacy-policy-update
on “Systemd: Don’t fallback to Google NTP and DNS”Submitted Cisco Umbrella 1M top domains as a story · 1 points
HN discussionAdvertising-supported nerds using the media to attack each other. The person making this coment about "BS jobs" is the one who started EasyDNS and OpenDNS and tried to compete with the pre-Chrome "Google toolbar" and later Chrome and eventually the "omnibox" for the privilege of injecting ads into the "user experience", and/or collecting data to support ad services. Google, with its control over being "default searc…
Comment linking /blog/opendns-google-dns
on “VC Says Half of Google Staff Do 'No Real Work'”Submitted Introducing Sodium, a New Cryptographic Library (2013) as a story · 1 points
HN discussion>What makes the no-ip.org case extraordinary is that Microsoft a) persuaded the court that the domain was being used for malware, and then b) persuaded the court that because of this, rather than doing something normal like compelling its operator to take down the afflicted subdomains, or failing that compelling a third party to suspend the domain, that they should be allowed to take over DNS service for the domain.…
Comment linking /blog/on-the-trail-of-malicious-dynamic-dns-domains
on “Let's Encrypt now supports ACME-CAA: closing the DV loophole”Cisco also provides a DNS-based popularity list: https://umbrella.cisco.com/blog/cisco-umbrella-1-million
Comment linking /blog/cisco-umbrella-1-million
on “Amazon is shutting down one of the oldest staples on the internet”More about the product: https://umbrella.cisco.com/products/features Seems like a very misconfigured deployment, since no normal mobile user will use third party CA to connect via Three. I don't expect that this is on purpose. When they did them same thing at OpenDNS ( https://www.snip2code.com/Snippet/1503745/opendns-is-man-in-... ) the certificate was valid only for 3 days: Issuer: CN=Cisco Umbrella Secondary SubC…
Comment linking /products/features
on “British mobile ISP SSL MITM attack for the purposes of censorship”
