diff --git a/src/adhocracy/config/__init__.py b/src/adhocracy/config/__init__.py
index db98dd3a0..354a2c230 100644
--- a/src/adhocracy/config/__init__.py
+++ b/src/adhocracy/config/__init__.py
@@ -19,6 +19,7 @@
     'adhocracy.demo_users': [],
     'adhocracy.enable_gender': False,
     'adhocracy.export_personal_email': False,
+    'adhocracy.external_navigation_base': None,
     'adhocracy.feedback_check_instance': True,
     'adhocracy.feedback_instance_key': u'feedback',
     'adhocracy.feedback_use_categories': True,
diff --git a/src/adhocracy/lib/helpers/__init__.py b/src/adhocracy/lib/helpers/__init__.py
index 49bd8cf1b..e7fc23fe6 100644
--- a/src/adhocracy/lib/helpers/__init__.py
+++ b/src/adhocracy/lib/helpers/__init__.py
@@ -45,6 +45,7 @@
 from adhocracy.lib.helpers import treatment_helper as treatment
 from adhocracy.lib.helpers import category_helper as category
 from adhocracy.lib.helpers import message_helper as message
+from adhocracy.lib.helpers import adhocracy_service as adhocracy_service
 
 from adhocracy.lib.helpers.fanstatic_helper import (FanstaticNeedHelper,
                                                     get_socialshareprivacy_url)
@@ -178,13 +179,19 @@ def add_rss(title, link):
                        type='application/rss+xml')
 
 
-def help_link(text, page, anchor=None):
-    url = base_url('/static/%s.%s', None)
+def help_url(page, anchor=None):
+    if adhocracy_service.instance_staticpages_api_address():
+        url = base_url('/static/%s.%s')
+    else:
+        url = base_url('/static/%s.%s', None)
     if anchor is not None:
         url += "#" + anchor
-    full_url = url % (page, 'html')
-    return (u"<a target='_new' class='staticlink_%s' href='%s' "
-            u">%s</a>") % (page, full_url, text)
+    return url % (page, 'html')
+
+
+def help_link(text, page, anchor=None):
+    url = help_url(page, anchor=anchor)
+    return (u"<a class='staticlink_%s' href='%s' >%s</a>") % (page, url, text)
 
 
 def get_redirect_url(target=u'login', entity=None, **kwargs):
diff --git a/src/adhocracy/lib/helpers/adhocracy_service.py b/src/adhocracy/lib/helpers/adhocracy_service.py
index dbb716383..6bb0e404c 100644
--- a/src/adhocracy/lib/helpers/adhocracy_service.py
+++ b/src/adhocracy/lib/helpers/adhocracy_service.py
@@ -1,10 +1,29 @@
 import requests
 from collections import OrderedDict
 
+from pylons import tmpl_context as c
+
 from adhocracy import config
 from adhocracy import i18n
 
 
+def instance_staticpages_api_address():
+    if c.instance is not None:
+        key = 'adhocracy.instance-%s.staticpages.rest_api_address'
+        return config.get(key % c.instance.key, '')
+    else:
+        return ''
+
+
+def staticpages_api_address():
+    ret = instance_staticpages_api_address()
+    if ret == '':
+        ret = config.get('adhocracy_service.staticpages.rest_api_address', '')
+    if ret == '':
+        ret = config.get('adhocracy_service.rest_api_address', '')
+    return ret
+
+
 class RESTAPI(object):
     """Helper to work with the adhocarcy_service rest api
        (adhocracy_kotti.mediacenter, adhocracy_kotti.staticpages, plone).
@@ -16,9 +35,7 @@ def __init__(self):
         self.staticpages_api_token = config.get(
             'adhocracy_service.staticpages.rest_api_token',
             config.get('adhocracy_service.rest_api_token', ''))
-        self.staticpages_api_address = config.get(
-            'adhocracy_service.staticpages.rest_api_address',
-            config.get('adhocracy_service.rest_api_address', ''))
+        self.staticpages_api_address = staticpages_api_address()
         self.staticpages_verify = config.get_bool(
             'adhocracy_service.staticpages.verify_ssl',
             config.get_bool('adhocracy_service.verify_ssl', True))
diff --git a/src/adhocracy/lib/helpers/staticpage_helper.py b/src/adhocracy/lib/helpers/staticpage_helper.py
index 42c38dca1..11d56220b 100644
--- a/src/adhocracy/lib/helpers/staticpage_helper.py
+++ b/src/adhocracy/lib/helpers/staticpage_helper.py
@@ -2,18 +2,23 @@
 import logging
 import babel.core
 
+from pylons import tmpl_context as c
+
 from adhocracy import config
 from adhocracy.lib import cache, staticpage
 from adhocracy.lib.helpers import url as _url
 from adhocracy.lib.helpers.adhocracy_service import RESTAPI
+from adhocracy.lib.helpers.adhocracy_service import \
+    instance_staticpages_api_address
 
 log = logging.getLogger(__name__)
 
 
 @cache.memoize('staticpage_url')
 def url(staticpage, **kwargs):
+    instance = c.instance if instance_staticpages_api_address() else None
     pid = staticpage.key
-    return _url.build(None, 'static', pid, **kwargs)
+    return _url.build(instance, 'static', pid, **kwargs)
 
 
 def get_lang_info(lang):
@@ -56,9 +61,10 @@ def use_external_navigation():
 
 def render_external_navigation(current_key):
     api = RESTAPI()
-    base = config.get('adhocracy.kotti_navigation_base', None)
+    base = config.get('adhocracy.external_navigation_base')
     result = api.staticpages_get(base=base)
     nav = result.json()
+    instance = c.instance if instance_staticpages_api_address() else None
     if nav is None or not nav.get('children'):
         log.error('External navigation not found for configured languages')
         return ''
@@ -71,7 +77,7 @@ def render_navigation_item(item, path='', toplevel=False):
         else:
             path = item['name']
 
-        url = '/static/%s.html' % path
+        url = _url.build(instance, 'static', path, format='html')
 
         contains_current = (path == current_key)
         if item['children']:
diff --git a/src/adhocracy/templates/error/http.html b/src/adhocracy/templates/error/http.html
index 3a96f37ed..f8084d5c7 100644
--- a/src/adhocracy/templates/error/http.html
+++ b/src/adhocracy/templates/error/http.html
@@ -17,6 +17,7 @@ <h2>${_("Error %s") % c.error_code}</h2>
 %endif
 
 %if not c.hide_notify:
-<p>${_("If this error continues to occur, please <a class='staticlink_imprint' href='/static/imprint.html'>notify the developers</a> with a description of what you were trying to do.")|n} ${_("An automated email message describing the situation has been sent to our developers.")}</p>
+<p>${_("If this error continues to occur, please %snotify the developers%s with a description of what you were trying to do.") % tuple(h.help_link('&&', 'imprint').split('&&'))|n}
+${_("An automated email message describing the situation has been sent to our developers.")}</p>
 %endif
 </%block>
diff --git a/src/adhocracy/templates/navigation.html b/src/adhocracy/templates/navigation.html
index 68446e167..695fbd272 100644
--- a/src/adhocracy/templates/navigation.html
+++ b/src/adhocracy/templates/navigation.html
@@ -54,14 +54,14 @@
                 ${h.staticpage.render_external_navigation(active) | n}
                 %else:
 
-                ${nav_link(href=h.base_url('/static/about.html', None),
+                ${nav_link(href=h.help_url('about'),
                            text=_('About'),
                            a_class='staticlink_about',
                            li_class=_class('about'),
                            id_="nav_about")}
                 <!--TODO: remove dummy link to merge in new links with diazo themeing-->
                 <li id="nav_dummy" style="display: none;"></li>
-                ${nav_link(href=h.base_url('/static/help.html', None),
+                ${nav_link(href=h.help_url('help'),
                            text=_("Help"),
                            a_class='staticlink_help',
                            li_class=_class('help'),
diff --git a/src/adhocracy/templates/user/register_form.html b/src/adhocracy/templates/user/register_form.html
index b9932dc67..4344a5a19 100644
--- a/src/adhocracy/templates/user/register_form.html
+++ b/src/adhocracy/templates/user/register_form.html
@@ -44,7 +44,7 @@
 
     <p>
       %if c.agree_text is None:
-        ${_("By registering, you agree with the %s.") % ("<a class='staticlink_terms' href='/static/terms.html'>%s</a>" % _("Terms and Conditions")) |n}
+        ${_("By registering, you agree with the %s.") % h.help_link(_("Terms and Conditions"), 'terms') |n}
         ${_(u"We'll occasionally inform you about important events such as the start of a new participation process via email.")}
       %else:
         ${c.agree_text|n}