diff --git a/botasaurus/sitemap.py b/botasaurus/sitemap.py
index aa3fbec..4bf573c 100644
--- a/botasaurus/sitemap.py
+++ b/botasaurus/sitemap.py
@@ -7,7 +7,7 @@
 from .list_utils import flatten
 from .request_decorator import request
 from .output import write_json
-from .sitemap_parser_utils import clean_robots_txt_url, fix_bad_sitemap_response, clean_sitemap_url, extract_sitemaps, split_into_links_and_sitemaps, fix_gzip_response, is_empty_path, parse_sitemaps_from_robots_txt, wrap_in_sitemap
+from .sitemap_parser_utils import clean_robots_txt_url, fix_bad_sitemap_response, clean_default_sitemap_urls, extract_sitemaps, split_into_links_and_sitemaps, fix_gzip_response, is_empty_path, parse_sitemaps_from_robots_txt, wrap_in_sitemap
 
 default_request_options = {
     # "use_stealth": True,
@@ -150,10 +150,10 @@ def sitemap(req, url):
             extract_link_upto_nth_segment(0, url), content
         )
         if not result:
-            sm_url = clean_sitemap_url(url)
-            content = fetch_content(sm_url,proxy = request_options['proxy'])
-            if content:
-                return [sm_url]
+            for sm_url in clean_default_sitemap_urls(url):
+                content = fetch_content(sm_url,proxy = request_options['proxy'])
+                if content:
+                    return [sm_url]
             return []
 
         return result
diff --git a/botasaurus/sitemap_parser_utils.py b/botasaurus/sitemap_parser_utils.py
index 03f8e68..2984cea 100644
--- a/botasaurus/sitemap_parser_utils.py
+++ b/botasaurus/sitemap_parser_utils.py
@@ -137,6 +137,18 @@ def clean_robots_txt_url(url):
 def clean_sitemap_url(url):
     return extract_link_upto_nth_segment(0, url) + "sitemap.xml"
 
+
+def clean_default_sitemap_urls(url):
+    base_url = extract_link_upto_nth_segment(0, url)
+    candidates = (
+        "sitemap.xml",
+        "sitemap_index.xml",
+        "sitemap-index.xml",
+        "sitemap_index.html",
+        "sitemap-index.html",
+    )
+    return [base_url + candidate for candidate in candidates]
+
 def clean_url(base_url, url: str) -> bool:
     """
     Returns true if URL is of the "http" ("https") scheme.