diff --git a/README.md b/README.md
index 16075ef..06e30e7 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,12 @@ for transferring data with URLs.
:small_orange_diamond: Shodan - the world's first search engine for Internet-connected devices.
:small_orange_diamond: GreyNoise - mass scanner (such as Shodan and Censys).
:small_orange_diamond: Netcraft - detailed report about the site, helping you to make informed choices about their integrity.
- :small_orange_diamond: Security Trails - APIs for Security Companies, Researchers and Teams.
+ :small_orange_diamond: Security Trails - APIs for Security Companies, Researchers and Teams.
+ :small_orange_diamond: Online Curl - curl test, analyze HTTP Response Headers.
+ :small_orange_diamond: URL Encode/Decode - tool from above to either encode or decode a string of text.
+ :small_orange_diamond: GTmetrix - analyze your site’s speed and make it faster.
+ :small_orange_diamond: Sucuri loadtimetester - test here the
+performance of any of your sites from across the globe.
#### Manuals/Howtos/Tutorials
@@ -115,7 +120,7 @@ for transferring data with URLs.
:small_orange_diamond: Troy Hunt - Microsoft Regional Director and Microsoft Most Valuable Professional for Developer Security.
-#### Services
+#### Systems/Services
:small_orange_diamond: OpenBSD - multi-platform 4.4BSD-based UNIX-like operating system.