diff --git a/access/rrwb/nginx/conf.d/common.inc b/access/rrwb/nginx/conf.d/common.inc
index e0cc83c..9adcefb 100644
--- a/access/rrwb/nginx/conf.d/common.inc
+++ b/access/rrwb/nginx/conf.d/common.inc
@@ -1,9 +1,19 @@
 # Common redirects to support the original URLs, included in other configs:
+location /welcome.html {
+    # Strip any /welcome.html, converting query string to path:
+    set $new_path $args;
+    set $args '';
+    rewrite ^/(.*)$ /$new_path last;
+    # Also need 'npld_access_staff_autostart.html?' ?
+}
 location / {
 
-    # Map original service URLs to the new ones:
-    rewrite ^/(welcome.html?|)ark:/(\d+)/([^\/]+) /doc/20130401000000/http://doc-streamer:8000/ark:/$2/$3/ permanent;
-    rewrite ^/(welcome.html?|)(\d+)/(.*)$ /web/$2/$3 permanent;
-    # Also need 'npld_access_staff_autostart.html?' ?
+    # Explicit ARKs
+    rewrite ^/ark:/(\d+)/([^\/]+) /doc/20130401000000/http://doc-streamer:8000/ark:/$1/$2/ permanent;
+    
+    # Implied ARKs (starting with e.g. vdc_)
+    rewrite ^/(vd[^\/]+) /doc/20130401000000/http://doc-streamer:8000/ark:/81055/$1/ permanent;
 
+    # UKWA IDs e.g. TIMESTAMP/URL:
+    rewrite ^/(\d+)/(.*)$ /web/$1/$2 permanent;
 }
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