diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ Build automation.
 - [GNU Make](https://www.gnu.org/software/make/) - The most popular automation build tool for many purposes, make is a tool which controls the generation of executables and other non-source files of a program from the program's source files. ([Source Code](https://git.savannah.gnu.org/cgit/make.git)) `GPL-3.0` `C`
 - [Gradle](https://gradle.org/) - Another build automation system. ([Source Code](https://github.com/gradle/gradle)) `Apache-2.0` `Groovy/Java`
 - [OpenBolt](https://voxpupuli.org/openvox/) - Orchestration tool to run orchestration workflows or one-off tasks/scripts to automate the provisioning and management of nodes. Community fork of the last open source version of [Puppet Bolt](https://help.puppet.com/bolt/current/topics/bolt.htm). ([Source Code](https://github.com/OpenVoxProject/openbolt)) `Apache-2.0` `Ruby`
-- [parse-dmarc](https://dmarcguard.io) `⚠` - DMARC aggregate report parser with a built-in dashboard. Fetches reports over IMAP, stores them, and flags spoofing. Single Go binary with embedded Vue UI, SQLite storage, and Prometheus metrics (alternative to PowerDMARC, EasyDMARC, Dmarcian). ([Source Code](https://github.com/dmarcguardhq/dmarcguard), [Clients](https://github.com/domainaware/parsedmarc)) `Apache-2.0` `Go/Docker`
+- [parse-dmarc](https://dmarcguard.io) `⚠` - DMARC aggregate report parser with a built-in dashboard. Fetches reports over IMAP, stores them, and flags spoofing. Single Go binary with embedded Vue UI, SQLite storage, and Prometheus metrics (alternative to PowerDMARC, EasyDMARC, Dmarcian). ([Source Code](https://github.com/dmarcguardhq/parse-dmarc), [Clients](https://github.com/domainaware/parsedmarc)) `Apache-2.0` `Go/Docker`
 - [Rake](https://ruby.github.io/rake/) - Build automation tool similar to Make, written in and extensible in Ruby. ([Source Code](https://github.com/ruby/rake)) `MIT` `Ruby`
 
 
@@ -459,7 +459,6 @@ _Related: [Databases](#databases), [Monitoring & Status Pages](#monitoring--stat
 - [Graphite](https://graphite.readthedocs.org/en/latest/) - Scalable graphing server. ([Source Code](https://github.com/graphite-project/graphite-web)) `Apache-2.0` `Python`
 - [RRDtool](https://oss.oetiker.ch/rrdtool/) - Industry standard, high performance data logging and graphing system for time series data. ([Source Code](https://github.com/oetiker/rrdtool-1.x)) `GPL-2.0` `C`
 - [Statsd](https://github.com/statsd/statsd) - Daemon that listens for statistics like counters and timers, sent over UDP or TCP, and sends aggregates to one or more pluggable backend services. `MIT` `Nodejs`
-- [tcollector](http://opentsdb.net/docs/build/html/user_guide/utilities/tcollector.html) - Gathers data from local collectors and pushes the data to OpenTSDB. ([Source Code](https://github.com/OpenTSDB/tcollector/)) `LGPL-3.0/GPL-3.0` `Python`
 - [Telegraf](https://github.com/influxdata/telegraf) - Plugin-driven server agent for collecting, processing, aggregating, and writing metrics. `MIT` `Go`
 - [VictoriaMetrics](https://victoriametrics.com/) - Fast, cost-effective time series database and monitoring solution; drop-in replacement for Prometheus with PromQL/MetricsQL support. ([Source Code](https://github.com/VictoriaMetrics/VictoriaMetrics)) `Apache-2.0` `Go`