diff --git a/Wiki/Facebook domain functionality tiers.md b/Wiki/Facebook domain functionality tiers.md
index fd0575b76..17afcf36e 100644
--- a/Wiki/Facebook domain functionality tiers.md	
+++ b/Wiki/Facebook domain functionality tiers.md	
@@ -1,8 +1,8 @@
 #### Test environment(s)
 
-* Last tested on the 18th of April 2021 from Trondheim, Norway.
+* Last tested on the 9th of May 2021 from Trondheim, Norway.
 * The default browser locale was set to Norwegian Bokmål.
-* Facebook domains were tested in Chrome on Windows 10 Pro. Facebookcorewwwi domains were tested in Tor Browser for Windows.
+* Facebook domains were tested in Chrome on Windows 10 Pro. Facebookcorewwwi domains were tested in Brave Browser for Windows.
 * No proxies were used.
 * No user-agent changes were made to the browsers.
 
@@ -12,23 +12,26 @@
 
 ![alt text](https://raw.githubusercontent.com/DandelionSprout/adfilt/master/Images/facebooktier1.png)
 * https://www.facebook.com/StrawberryShortcake/
-* All currently known language-code versions of Facebook (e.g. https://en-gb.facebook.com/StrawberryShortcake/
+* All currently known language-code versions of Facebook (e.g. https://en-gb.facebook.com/StrawberryShortcake/)
 * https://www.beta.facebook.com/StrawberryShortcake/ (Note that removing the `www.` part will cause it to redirect to facebook.com)
 * https://b-www.facebook.com/StrawberryShortcake/
 * https://secure.facebook.com/StrawberryShortcake/
 * https://pixel.facebook.com/StrawberryShortcake/ (I didn't expect this to work, since it's usually only a 3rd-party tracking domain, but it does)
 * https://error.facebook.com/StrawberryShortcake/ (?!?!?!?!?)
 * https://www.facebookcorewwwi.onion/StrawberryShortcake/
-* https://www.beta.facebookcorewwwi.onion/StrawberryShortcake/ (Its HTTPS certificate is currently broken)
 * https://b-www.facebookcorewwwi.onion/StrawberryShortcake/
 * https://secure.facebookcorewwwi.onion/StrawberryShortcake/
 * https://pixel.facebookcorewwwi.onion/StrawberryShortcake/
 * https://error.facebookcorewwwi.onion/StrawberryShortcake/
-
-#### Tested 16th of March 2020
 * https://t.facebook.com/StrawberryShortcake/
 * https://t.facebookcorewwwi.onion/StrawberryShortcake/
 
+## Tier 1B (Different login bar):
+
+![image](https://user-images.githubusercontent.com/22780683/117585077-c48b7900-b110-11eb-85a0-eafcbe095570.png)
+* https://business.facebook.com/StrawberryShortcake/
+* https://business.facebookcorewwwi.onion/StrawberryShortcake/
+
 ## Tier 2 (Phones and non-keyboard tablets):
 
 (I couldn't find any ways to remove the extreme banner image crust on the Tier 2 domains. My apologies in advance for your sore eyes.)
@@ -58,9 +61,9 @@
 * https://mbasic.facebook.com/StrawberryShortcake/
 * https://d.facebook.com/StrawberryShortcake/
 * https://free.facebook.com/StrawberryShortcake/ (Available in southeast Asia only. Elsewhere redirects to m.facebook.com)
-* https://free.facebookcorewwwi.onion/StrawberryShortcake/
 * https://mbasic.facebookcorewwwi.onion/StrawberryShortcake
 * https://d.facebookcorewwwi.onion/StrawberryShortcake (Some image placements are broken)
+* https://free.facebookcorewwwi.onion/StrawberryShortcake/
 
 ## Tier 4 (Old phones; images are not loaded unless clicked on):
 
@@ -70,10 +73,7 @@
 
 ## Unclear status:
 * https://apps.facebook.com/StrawberryShortcake/ (Requires being logged on to access)
-* https://web.facebook.com/StrawberryShortcake/ (Redirects to facebook.com)
-* https://web.beta.facebook.com/StrawberryShortcake/ (Redirects to beta.facebook.com)
 * https://intern.facebook.com/StrawberryShortcake/ (Requires being logged on to access, and may or may not require actually being hired by Facebook)
-* https://m.beta.facebookcorewwwi.onion/StrawberryShortcake/ (Its SSL certificate is currently broken)
 
 ## Currently presumed to be discontinued:
 * https://h.facebook.com/StrawberryShortcake/ (Redirects to `https://m.facebook.com/StrawberryShortcake/?_rdr`)
@@ -93,3 +93,7 @@
 * https://o.facebook.com/StrawberryShortcake/
 * https://o.beta.facebook.com/StrawberryShortcake/
 * https://0.beta.facebook.com/StrawberryShortcake/ (Redirects to m.beta.facebook.com)
+* https://www.beta.facebookcorewwwi.onion/StrawberryShortcake/ ("Error 400" browser page)
+* https://m.beta.facebookcorewwwi.onion/StrawberryShortcake/ ("Error 400" browser page)
+* https://web.facebook.com/StrawberryShortcake/ (Redirects to facebook.com)
+* https://web.beta.facebook.com/StrawberryShortcake/ (Redirects to beta.facebook.com)