Alternatives and competitors
Sites like URIBL.COM
The 20 closest email spam filtering alternatives to URIBL.COM, ranked by what they actually offer, and the 2 technologies behind it.
Looking for an alternative to URIBL.COM? The closest matches are Spamhaus, Rspamd and Akismet. We match sites by what they actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Vote on each alternative and leave a short note to help the next person choose.
- Neighbours
- k = 20
- Sites searched
- 4,032
- Vector
- 384-d
- Query
- 14 ms
01 · Entity
About URIBL.COM
URIBL.COM uribl.com
URIBL.COM - Realtime URI Blacklist
URIBL.COM is a Realtime URI Blacklist (RHSBL) served via DNS to identify Unsolicitied Bulk and Commercial Email (UCE/UBE) based on the links within the email. URIBL.COM is enabled by default in the popular opensource SpamAssassin.
Summary by Claude
A real-time DNS-based blacklist (RHSBL) of domains found in spam email links, used by mail servers and filters such as SpamAssassin to flag unsolicited bulk email. Offers URI lookup and submission.
- Who it’s for
- Email administrators and spam filter operators
- Business model
- Free public use with paid datafeed subscriptions for high-volume users
02 · Embedding space
Competitor map
Each alternative by how close its vector is to URIBL.COM’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.
similarity × popularity
03 · Nearest neighbours
Alternatives to URIBL.COM
Thumbs up if it’s a real alternative to URIBL.COM, thumbs down if it isn’t.
- 01
Strengthening trust and safety across the internet | Spamhaus
Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration.
Very close cos 0.916 - 02
Rspamd — Email Security System
Rspamd is an email-security engine that stops phishing, business email compromise, malware, and spam for enterprises, ESPs, and hosting providers. Open-source detection core with premium support and SLAs.
Very close cos 0.903 - 03
Akismet: Spam Protection for Websites
Say goodbye to spam with Akismet – the ultimate spam protection used by millions of websites. Sign up today and never worry about spam again!
Close cos 0.886 - 04
Linkmake
Make your link safe using Link Protector
Close cos 0.868 - 05
Email and calendar made better | Fastmail
Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.
Close cos 0.870 - 06
NextDNS - The new firewall for the modern Internet
NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.
Close cos 0.869 - 07
NLnet Labs - Home
Research & Development, Internet architecture, DNS, Routing, Stability and Security.
Close cos 0.868 - 08
Sender Score - Email Marketing Education and Free Tools
Email doesn't have to be complicated. Assess where you are today, learn how to improve, and leverage free tools and education.
Close cos 0.863 - 09
Hardened PHP - Hardened-PHP
PHP is far and away the most popular backend programming language today, with more than 80 websites worldwide taking advantage of PHP solutions. All of the most popular CMS platforms – including WordPress, Joomla!, and Drupal (just to name a few) leverage this technology. It’s flexibility and versatility make it a powerhouse programming language, but […]
Close cos 0.863 - 10
Client Challenge
free and open-source web content management system
Close cos 0.865 - 11
Flashbots
A research and development organization mitigating the negative externalities posed by MEV.
Close cos 0.861 - 12
Create Email Marketing Your Audience Will Love - MailerLite
Digital marketing tools to grow your audience faster and drive revenue smarter. Backed by 24/7 award-winning support. Check it out now!
Close cos 0.863 - 13
AdGuard DNS — ad-blocking DNS server
Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.
Close cos 0.861 - 14
Email & SMS Marketing Platform | Mailchimp
Utilize real-time user behavior data and artificial intelligence to convert more customers. Easy to use, get started for free!
Close cos 0.860 - 15
Access Restricted | Radisson Hotel Group
American international hotel chain
Close cos 0.860 - 16
Page not found.
Close cos 0.860 - 17
RTBWise - Turn Every Impression into Measurable Revenue
Close cos 0.860 - 18
datadome.co
cybersecurity company
Close cos 0.859 - 19
Ahrefs—AI Marketing Platform Powered by Big Data
We help marketers drive visibility across AI search, SEO, content, and social – with the largest AI and search databases online.
- Google Analytics
- Cloudflare
- Cloudflare DNS
- Cloudflare Web Analytics
- CookieYes
- Google Ads conversion tracking
Close cos 0.859 - 20
Arch Linux
Linux distribution
Close cos 0.859
Ranked by score: the cosine similarity of each site’s vector to uribl.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones URIBL.COM uses too. Votes and comments come from visitors and don’t change the ranking.
04 · Fingerprints
Technology
What URIBL.COM is built with, and what its closest competitors use, from its homepage’s code and its DNS records.
Built with
- Analytics
- Google Analytics page source: google-analytics.com/analytics.js
- Web servers
- nginx header server: nginx/1.30.2
Stack changes
No changes yet. Each new crawl is compared with the last one, and what URIBL.COM adds or drops shows up here.
What competitors use
Across the 20 closest sites.
- Google Search Console · not on uribl.com 11/20
- nginx 8/20
- Google Workspace · not on uribl.com 8/20
- Cloudflare · not on uribl.com 7/20
- Zendesk · not on uribl.com 5/20
- Cloudflare DNS · not on uribl.com 5/20
- PHP · not on uribl.com 4/20
- WordPress · not on uribl.com 4/20
- jQuery · not on uribl.com 4/20
- Amazon SES · not on uribl.com 4/20
- Vue.js · not on uribl.com 3/20
- Zoom · not on uribl.com 3/20
- Next.js · not on uribl.com 3/20
- React · not on uribl.com 3/20
- Amazon Route 53 · not on uribl.com 3/20
- Font Awesome · not on uribl.com 3/20