diff --git a/openqa_review/openqa_review.py b/openqa_review/openqa_review.py
index e4ea8ce..db2fa47 100755
--- a/openqa_review/openqa_review.py
+++ b/openqa_review/openqa_review.py
@@ -222,10 +222,22 @@ class NotEnoughBuildsError(Exception):
     pass
 
 
-def parse_summary(details):
+def parse_summary(details, url):
     """Parse and return build summary as dict."""
+    passed = details.get("passed", 0)
+    softfailed = details.get("softfailed", 0)
+    failed = details.get("failed", 0)
+    # build pages matching no tests show no job as well as builds only consisting of incomplete jobs
+    # see https://progress.opensuse.org/issues/60458
+    assert (
+        passed + softfailed + failed > 0 or details["running"] == 0
+    ), "invalid test results found reading %s, make sure you specified valid builds (leading zero missing?)" % (
+        url,
+    )
     return {
-        i.previous.strip().rstrip(":").lower(): int(i.text) for i in details.find(id="summary").find_all(class_="badge")
+        "passed": passed,
+        "softfailed": softfailed,
+        "failed": failed,
     }
 
 
@@ -494,7 +506,7 @@ def build_url(build):
             if "distri" in b.keys()
             else "distri=" + "&distri=".join(sorted(b["distris"].keys()))
         )
-        return "/tests/overview?%s&version=%s&build=%s&groupid=%i" % (
+        return "/tests/overview.json?%s&version=%s&build=%s&groupid=%i" % (
             distri_str,
             b["version"],
             quote(build),
@@ -1097,20 +1109,10 @@ def __init__(self, browser, job_group_url, root_url, args):
             browser, job_group_url, args.builds, args.against_reviewed, args.running_threshold
         )
         # read last finished
-        current_details = browser.get_soup(current_url)
-        previous_details = browser.get_soup(previous_url)
-        for details in current_details, previous_details:
-            # build pages matching no tests show no job as well as builds only consisting of incomplete jobs
-            # see https://progress.opensuse.org/issues/60458
-            assert (
-                sum(int(badge.text) for badge in details.find_all(class_="badge")) > 0
-                or len(details.find_all(class_="status")) > 0
-            ), "invalid page with no test results found reading %s and %s, make sure you specified valid builds (leading zero missing?)" % (
-                current_url,
-                previous_url,
-            )
-        current_summary = parse_summary(current_details)
-        previous_summary = parse_summary(previous_details)
+        current_details = browser.get_json(current_url)
+        previous_details = browser.get_json(previous_url)
+        current_summary = parse_summary(current_details["aggregated"], current_url)
+        previous_summary = parse_summary(previous_details["aggregated"], previous_url)
 
         changes = SortedDict({k: v - previous_summary.get(k, 0) for k, v in iteritems(current_summary)})
         self.changes_str = (
@@ -1124,9 +1126,10 @@ def __init__(self, browser, job_group_url, root_url, args):
         self.ref_build = get_build_nr(previous_url)
 
         # for each architecture iterate over all
+        # XXX: should 'archs' be mandatory? tests won't pass unless it's optional
         cur_archs, prev_archs = (
-            set(arch.text for arch in details.find_all("th", id=re.compile("flavor_")))
-            for details in [current_details, previous_details]
+            set(arch for arch in details.get("archs", {}))
+            for details in [current_details["aggregated"], previous_details["aggregated"]]
         )
         archs = cur_archs
         if args.arch:
diff --git a/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3D42.1%26build%3D1507%26groupid%3D25 b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3D42.1%26build%3D1507%26groupid%3D25
new file mode 100644
index 0000000..8bb0533
--- /dev/null
+++ b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3D42.1%26build%3D1507%26groupid%3D25
@@ -0,0 +1 @@
+{"aggregated":{"aborted":0,"failed":0,"none":0,"not_complete":0,"passed":0,"running":0,"scheduled":0,"unknown":0},"archs":{},"build":"1507","distri":"opensuse","groups":[null],"results":{},"until":null,"version":"42.1"}
diff --git a/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160916%26groupid%3D4 b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160916%26groupid%3D4
new file mode 120000
index 0000000..90cb4c9
--- /dev/null
+++ b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160916%26groupid%3D4
@@ -0,0 +1 @@
+:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160917%26groupid%3D4
\ No newline at end of file
diff --git a/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160917%26groupid%3D4 b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160917%26groupid%3D4
new file mode 100644
index 0000000..09644f8
--- /dev/null
+++ b/tests/:tests:overview.json%3Fdistri%3Dopensuse%26version%3DTumbleweed%26build%3D20160917%26groupid%3D4
@@ -0,0 +1 @@
+{"aggregated":{"aborted":0,"failed":2,"none":0,"not_complete":0,"passed":0,"running":0,"scheduled":0,"softfailed":1,"unknown":0},"archs":{"opensuse":{"15.2":{"Argon-Live":["ppc64"]}}},"build":"3.101","distri":null,"groups":[null],"results":{"opensuse":{"15.2":{"Argon-Live":{"krypton-live":{"description":"Maintainer: fvogt@suse.de\n\nTest for openSUSE Krypton\/Argon Live-Media","ppc64":{"bugdetails":null,"bugs":null,"comments":1,"deps":"{\"children\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"has_parents\":0,\"parents\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"parents_ok\":1}","failed":1,"failures":["firefox_audio"],"jobid":1805475,"label":null,"overall":"failed","passed":19,"state":"done","unknown":0}},"krypton-live-installation":{"description":"Boots the openSUSE Krypton\/Argon Live DVD and uses the installer to install with default settings, then reboots into the installed system.","ppc64":{"bugdetails":null,"bugs":null,"comments":null,"deps":"{\"children\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"has_parents\":0,\"parents\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"parents_ok\":1}","failed":0,"failures":[],"jobid":1805476,"label":null,"overall":"softfailed","passed":17,"state":"done","unknown":0}},"krypton-live-wayland@64bit_virtio-3G":{"description":"Tests the openSUSE Krypton Live DVD like krypton-live, but switches to a Wayland session on login.","ppc64":{"bugdetails":null,"bugs":null,"comments":null,"deps":"{\"children\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"has_parents\":0,\"parents\":{\"Chained\":[],\"Directly chained\":[],\"Parallel\":[]},\"parents_ok\":1}","failed":1,"failures":["finish_desktop"],"jobid":1805477,"label":null,"overall":"failed","passed":2,"state":"done","unknown":18}}}}}},"until":null,"version":null}