diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index 529051a93..b3bc38916 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -628,6 +628,7 @@ from .ruutu import RuutuIE
 from .sandia import SandiaIE
 from .safari import (
     SafariIE,
+    SafariApiIE,
     SafariCourseIE,
 )
 from .sapo import SapoIE
diff --git a/youtube_dl/extractor/safari.py b/youtube_dl/extractor/safari.py
index 256396bb8..6ba91f202 100644
--- a/youtube_dl/extractor/safari.py
+++ b/youtube_dl/extractor/safari.py
@@ -75,16 +75,7 @@ class SafariBaseIE(InfoExtractor):
 class SafariIE(SafariBaseIE):
     IE_NAME = 'safari'
     IE_DESC = 'safaribooksonline.com online video'
-    _VALID_URL = r'''(?x)https?://
-                            (?:www\.)?safaribooksonline\.com/
-                                (?:
-                                    library/view/[^/]+|
-                                    api/v1/book
-                                )/
-                                (?P<course_id>[^/]+)/
-                                    (?:chapter(?:-content)?/)?
-                                (?P<part>part\d+)\.html
-    '''
+    _VALID_URL = r'https?://(?:www\.)?safaribooksonline\.com/library/view/[^/]+/(?P<course_id>[^/]+)/(?P<part>part\d+)\.html'
 
     _TESTS = [{
         'url': 'https://www.safaribooksonline.com/library/view/hadoop-fundamentals-livelessons/9780133392838/part00.html',
@@ -97,9 +88,6 @@ class SafariIE(SafariBaseIE):
             'upload_date': '20150724',
             'uploader_id': 'stork',
         },
-    }, {
-        'url': 'https://www.safaribooksonline.com/api/v1/book/9780133392838/chapter/part00.html',
-        'only_matching': True,
     }, {
         # non-digits in course id
         'url': 'https://www.safaribooksonline.com/library/view/create-a-nodejs/100000006A0210/part00.html',
@@ -108,13 +96,18 @@ class SafariIE(SafariBaseIE):
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
-        course_id = mobj.group('course_id')
-        part = mobj.group('part')
-
-        webpage = self._download_webpage(url, '%s/%s' % (course_id, part))
-        reference_id = self._search_regex(r'data-reference-id="([^"]+)"', webpage, 'kaltura reference id')
-        partner_id = self._search_regex(r'data-partner-id="([^"]+)"', webpage, 'kaltura widget id')
-        ui_id = self._search_regex(r'data-ui-id="([^"]+)"', webpage, 'kaltura uiconf id')
+        video_id = '%s/%s' % (mobj.group('course_id'), mobj.group('part'))
+
+        webpage = self._download_webpage(url, video_id)
+        reference_id = self._search_regex(
+            r'data-reference-id=(["\'])(?P<id>.+?)\1',
+            webpage, 'kaltura reference id', group='id')
+        partner_id = self._search_regex(
+            r'data-partner-id=(["\'])(?P<id>.+?)\1',
+            webpage, 'kaltura widget id', group='id')
+        ui_id = self._search_regex(
+            r'data-ui-id=(["\'])(?P<id>.+?)\1',
+            webpage, 'kaltura uiconf id', group='id')
 
         query = {
             'wid': '_%s' % partner_id,
@@ -125,7 +118,7 @@ class SafariIE(SafariBaseIE):
         if self.LOGGED_IN:
             kaltura_session = self._download_json(
                 '%s/player/kaltura_session/?reference_id=%s' % (self._API_BASE, reference_id),
-                course_id, 'Downloading kaltura session JSON',
+                video_id, 'Downloading kaltura session JSON',
                 'Unable to download kaltura session JSON', fatal=False)
             if kaltura_session:
                 session = kaltura_session.get('session')
@@ -137,6 +130,23 @@ class SafariIE(SafariBaseIE):
             'Kaltura')
 
 
+class SafariApiIE(SafariBaseIE):
+    IE_NAME = 'safari:api'
+    _VALID_URL = r'https?://(?:www\.)?safaribooksonline\.com/api/v1/book/(?P<course_id>[^/]+)/chapter(?:-content)?/(?P<part>part\d+)\.html'
+
+    _TEST = {
+        'url': 'https://www.safaribooksonline.com/api/v1/book/9780133392838/chapter/part00.html',
+        'only_matching': True,
+    }
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        part = self._download_json(
+            url, '%s/%s' % (mobj.group('course_id'), mobj.group('part')),
+            'Downloading part JSON')
+        return self.url_result(part['web_url'], SafariIE.ie_key())
+
+
 class SafariCourseIE(SafariBaseIE):
     IE_NAME = 'safari:course'
     IE_DESC = 'safaribooksonline.com online courses'
@@ -168,7 +178,7 @@ class SafariCourseIE(SafariBaseIE):
                 'No chapters found for course %s' % course_id, expected=True)
 
         entries = [
-            self.url_result(chapter, 'Safari')
+            self.url_result(chapter, SafariApiIE.ie_key())
             for chapter in course_json['chapters']]
 
         course_title = course_json['title']