diff --git a/cps/opds.py b/cps/opds.py
index b13b0570..c0ed6c20 100644
--- a/cps/opds.py
+++ b/cps/opds.py
@@ -31,7 +31,7 @@ from flask_babel import gettext as _
 from sqlalchemy.sql.expression import func, text, or_, and_, true
 from sqlalchemy.exc import InvalidRequestError, OperationalError
 
-from . import logger, config, db, calibre_db, ub, isoLanguages
+from . import logger, config, db, calibre_db, ub, isoLanguages, constants
 from .usermanagement import requires_basic_auth_if_no_ano
 from .helper import get_download_link, get_book_cover
 from .pagination import Pagination
@@ -94,6 +94,8 @@ def feed_letter_books(book_id):
 @opds.route("/opds/new")
 @requires_basic_auth_if_no_ano
 def feed_new():
+    if not current_user.check_visibility(constants.SIDEBAR_RECENT):
+        abort(404)
     off = request.args.get("offset") or 0
     entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
                                                         db.Books, True, [db.Books.timestamp.desc()],
@@ -104,6 +106,8 @@ def feed_new():
 @opds.route("/opds/discover")
 @requires_basic_auth_if_no_ano
 def feed_discover():
+    if not current_user.check_visibility(constants.SIDEBAR_RANDOM):
+        abort(404)
     query = calibre_db.generate_linked_query(config.config_read_column, db.Books)
     entries = query.filter(calibre_db.common_filters()).order_by(func.random()).limit(config.config_books_per_page)
     pagination = Pagination(1, config.config_books_per_page, int(config.config_books_per_page))
@@ -113,6 +117,8 @@ def feed_discover():
 @opds.route("/opds/rated")
 @requires_basic_auth_if_no_ano
 def feed_best_rated():
+    if not current_user.check_visibility(constants.SIDEBAR_RATED):
+        abort(404)
     off = request.args.get("offset") or 0
     entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
                                                         db.Books, db.Books.ratings.any(db.Ratings.rating > 9),
@@ -124,6 +130,8 @@ def feed_best_rated():
 @opds.route("/opds/hot")
 @requires_basic_auth_if_no_ano
 def feed_hot():
+    if not current_user.check_visibility(constants.SIDEBAR_DOWNLOAD):
+        abort(404)
     off = request.args.get("offset") or 0
     all_books = ub.session.query(ub.Downloads, func.count(ub.Downloads.book_id)).order_by(
         func.count(ub.Downloads.book_id).desc()).group_by(ub.Downloads.book_id)
@@ -146,12 +154,16 @@ def feed_hot():
 @opds.route("/opds/author")
 @requires_basic_auth_if_no_ano
 def feed_authorindex():
+    if not current_user.check_visibility(constants.SIDEBAR_AUTHOR):
+        abort(404)
     return render_element_index(db.Authors.sort, db.books_authors_link, 'opds.feed_letter_author')
 
 
 @opds.route("/opds/author/letter/<book_id>")
 @requires_basic_auth_if_no_ano
 def feed_letter_author(book_id):
+    if not current_user.check_visibility(constants.SIDEBAR_AUTHOR):
+        abort(404)
     off = request.args.get("offset") or 0
     letter = true() if book_id == "00" else func.upper(db.Authors.sort).startswith(book_id)
     entries = calibre_db.session.query(db.Authors).join(db.books_authors_link).join(db.Books)\
@@ -173,6 +185,8 @@ def feed_author(book_id):
 @opds.route("/opds/publisher")
 @requires_basic_auth_if_no_ano
 def feed_publisherindex():
+    if not current_user.check_visibility(constants.SIDEBAR_PUBLISHER):
+        abort(404)
     off = request.args.get("offset") or 0
     entries = calibre_db.session.query(db.Publishers)\
         .join(db.books_publishers_link)\
@@ -194,12 +208,16 @@ def feed_publisher(book_id):
 @opds.route("/opds/category")
 @requires_basic_auth_if_no_ano
 def feed_categoryindex():
+    if not current_user.check_visibility(constants.SIDEBAR_CATEGORY):
+        abort(404)
     return render_element_index(db.Tags.name, db.books_tags_link, 'opds.feed_letter_category')
 
 
 @opds.route("/opds/category/letter/<book_id>")
 @requires_basic_auth_if_no_ano
 def feed_letter_category(book_id):
+    if not current_user.check_visibility(constants.SIDEBAR_CATEGORY):
+        abort(404)
     off = request.args.get("offset") or 0
     letter = true() if book_id == "00" else func.upper(db.Tags.name).startswith(book_id)
     entries = calibre_db.session.query(db.Tags)\
@@ -223,12 +241,16 @@ def feed_category(book_id):
 @opds.route("/opds/series")
 @requires_basic_auth_if_no_ano
 def feed_seriesindex():
+    if not current_user.check_visibility(constants.SIDEBAR_SERIES):
+        abort(404)
     return render_element_index(db.Series.sort, db.books_series_link, 'opds.feed_letter_series')
 
 
 @opds.route("/opds/series/letter/<book_id>")
 @requires_basic_auth_if_no_ano
 def feed_letter_series(book_id):
+    if not current_user.check_visibility(constants.SIDEBAR_SERIES):
+        abort(404)
     off = request.args.get("offset") or 0
     letter = true() if book_id == "00" else func.upper(db.Series.sort).startswith(book_id)
     entries = calibre_db.session.query(db.Series)\
@@ -258,6 +280,8 @@ def feed_series(book_id):
 @opds.route("/opds/ratings")
 @requires_basic_auth_if_no_ano
 def feed_ratingindex():
+    if not current_user.check_visibility(constants.SIDEBAR_RATING):
+        abort(404)
     off = request.args.get("offset") or 0
     entries = calibre_db.session.query(db.Ratings, func.count('books_ratings_link.book').label('count'),
                                        (db.Ratings.rating / 2).label('name')) \
@@ -284,6 +308,8 @@ def feed_ratings(book_id):
 @opds.route("/opds/formats")
 @requires_basic_auth_if_no_ano
 def feed_formatindex():
+    if not current_user.check_visibility(constants.SIDEBAR_FORMAT):
+        abort(404)
     off = request.args.get("offset") or 0
     entries = calibre_db.session.query(db.Data).join(db.Books)\
         .filter(calibre_db.common_filters()) \
@@ -291,7 +317,6 @@ def feed_formatindex():
         .order_by(db.Data.format).all()
     pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
                             len(entries))
-
     element = list()
     for entry in entries:
         element.append(FeedObject(entry.format, entry.format))
@@ -314,6 +339,8 @@ def feed_format(book_id):
 @opds.route("/opds/language/")
 @requires_basic_auth_if_no_ano
 def feed_languagesindex():
+    if not current_user.check_visibility(constants.SIDEBAR_LANGUAGE):
+        abort(404)
     off = request.args.get("offset") or 0
     if current_user.filter_language() == "all":
         languages = calibre_db.speaking_language()
@@ -341,6 +368,8 @@ def feed_languages(book_id):
 @opds.route("/opds/shelfindex")
 @requires_basic_auth_if_no_ano
 def feed_shelfindex():
+    if not (current_user.is_authenticated or g.allow_anonymous):
+        abort(404)
     off = request.args.get("offset") or 0
     shelf = ub.session.query(ub.Shelf).filter(
         or_(ub.Shelf.is_public == 1, ub.Shelf.user_id == current_user.id)).order_by(ub.Shelf.name).all()
@@ -353,7 +382,8 @@ def feed_shelfindex():
 @opds.route("/opds/shelf/<int:book_id>")
 @requires_basic_auth_if_no_ano
 def feed_shelf(book_id):
-    off = request.args.get("offset") or 0
+    if not (current_user.is_authenticated or g.allow_anonymous):
+        abort(404)
     if current_user.is_anonymous:
         shelf = ub.session.query(ub.Shelf).filter(ub.Shelf.is_public == 1,
                                                   ub.Shelf.id == book_id).first()
@@ -436,6 +466,8 @@ def feed_get_cover(book_id):
 @opds.route("/opds/readbooks")
 @requires_basic_auth_if_no_ano
 def feed_read_books():
+    if not (current_user.check_visibility(constants.SIDEBAR_READ_AND_UNREAD) and not current_user.is_anonymous):
+        return abort(403)
     off = request.args.get("offset") or 0
     result, pagination = render_read_books(int(off) / (int(config.config_books_per_page)) + 1, True, True)
     return render_xml_template('feed.xml', entries=result, pagination=pagination)
@@ -444,6 +476,8 @@ def feed_read_books():
 @opds.route("/opds/unreadbooks")
 @requires_basic_auth_if_no_ano
 def feed_unread_books():
+    if not (current_user.check_visibility(constants.SIDEBAR_READ_AND_UNREAD) and not current_user.is_anonymous):
+        return abort(403)
     off = request.args.get("offset") or 0
     result, pagination = render_read_books(int(off) / (int(config.config_books_per_page)) + 1, False, True)
     return render_xml_template('feed.xml', entries=result, pagination=pagination)
@@ -477,7 +511,7 @@ def feed_search(term):
 def render_xml_template(*args, **kwargs):
     # ToDo: return time in current timezone similar to %z
     currtime = datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S+00:00")
-    xml = render_template(current_time=currtime, instance=config.config_calibre_web_title, *args, **kwargs)
+    xml = render_template(current_time=currtime, instance=config.config_calibre_web_title, constants=constants.sidebar_settings, *args, **kwargs)
     response = make_response(xml)
     response.headers["Content-Type"] = "application/atom+xml; charset=utf-8"
     return response