diff --git a/src/auto_archiver/enrichers/screenshot_enricher.py b/src/auto_archiver/enrichers/screenshot_enricher.py
index a953d16..3c768f6 100644
--- a/src/auto_archiver/enrichers/screenshot_enricher.py
+++ b/src/auto_archiver/enrichers/screenshot_enricher.py
@@ -3,7 +3,7 @@ import time, uuid, os
 from selenium.common.exceptions import TimeoutException
 
 from . import Enricher
-from ..utils import Webdriver
+from ..utils import Webdriver, UrlUtil
 from ..core import Media, Metadata
 
 class ScreenshotEnricher(Enricher):
@@ -19,6 +19,10 @@ class ScreenshotEnricher(Enricher):
 
     def enrich(self, to_enrich: Metadata) -> None:
         url = to_enrich.get_url()
+        if UrlUtil.is_auth_wall(url):
+            logger.debug(f"[SKIP] SCREENSHOT since url is behind AUTH WALL: {url=}")
+            return
+
         logger.debug(f"Enriching screenshot for {url=}")
         with Webdriver(self.width, self.height, self.timeout, 'facebook.com' in url) as driver:
             try:
diff --git a/src/auto_archiver/enrichers/wayback_enricher.py b/src/auto_archiver/enrichers/wayback_enricher.py
index 187c3fe..45ecb7d 100644
--- a/src/auto_archiver/enrichers/wayback_enricher.py
+++ b/src/auto_archiver/enrichers/wayback_enricher.py
@@ -1,8 +1,10 @@
 from loguru import logger
 import time, requests
 
+
 from . import Enricher
 from ..archivers import Archiver
+from ..utils import UrlUtil
 from ..core import Metadata
 
 class WaybackArchiverEnricher(Enricher, Archiver):
@@ -33,6 +35,10 @@ class WaybackArchiverEnricher(Enricher, Archiver):
 
     def enrich(self, to_enrich: Metadata) -> bool:
         url = to_enrich.get_url()
+        if UrlUtil.is_auth_wall(url):
+            logger.debug(f"[SKIP] WAYBACK since url is behind AUTH WALL: {url=}")
+            return
+
         logger.debug(f"calling wayback for {url=}")
 
         if to_enrich.get("wayback"):
diff --git a/src/auto_archiver/formatters/html_formatter.py b/src/auto_archiver/formatters/html_formatter.py
index cb00111..abd8cf4 100644
--- a/src/auto_archiver/formatters/html_formatter.py
+++ b/src/auto_archiver/formatters/html_formatter.py
@@ -3,6 +3,7 @@ from dataclasses import dataclass
 import mimetypes, uuid, os, pathlib
 from jinja2 import Environment, FileSystemLoader
 from urllib.parse import quote
+from loguru import logger
 
 from ..version import __version__
 from ..core import Metadata, Media
@@ -26,12 +27,17 @@ class HtmlFormatter(Formatter):
     @staticmethod
     def configs() -> dict:
         return {
-            "detect_thumbnails": {"default": True, "help": "if true will group by thumbnails generated by thumbnail enricher by id 'thumbnail_00'"},
-
+            "detect_thumbnails": {"default": True, "help": "if true will group by thumbnails generated by thumbnail enricher by id 'thumbnail_00'"}
         }
+
     def format(self, item: Metadata) -> Media:
+        url = item.get_url()
+        if item.is_empty():
+            logger.debug(f"[SKIP] FORMAT there is no media or metadata to format: {url=}")
+            return
+
         content = self.template.render(
-            url=item.get_url(),
+            url=url,
             title=item.get_title(),
             media=item.media,
             metadata=item.get_clean_metadata(),
diff --git a/src/auto_archiver/utils/url.py b/src/auto_archiver/utils/url.py
new file mode 100644
index 0000000..c854405
--- /dev/null
+++ b/src/auto_archiver/utils/url.py
@@ -0,0 +1,19 @@
+import re
+
+class UrlUtil:
+    telegram_private = re.compile(r"https:\/\/t\.me(\/c)\/(.+)\/(\d+)")
+    is_istagram = re.compile(r"https:\/\/www\.instagram\.com")
+
+    @staticmethod
+    def clean(url): return url
+
+    @staticmethod
+    def is_auth_wall(url):
+        """
+        checks if URL is behind an authentication wall meaning steps like wayback, wacz, ... may not work
+        """
+        if UrlUtil.telegram_private.match(url): return True
+        if UrlUtil.is_istagram.match(url): return True
+
+        return False
+