diff --git a/linkcheck/checker/httpurl.py b/linkcheck/checker/httpurl.py
index 3ed13041..9984e3ef 100644
--- a/linkcheck/checker/httpurl.py
+++ b/linkcheck/checker/httpurl.py
@@ -110,7 +110,7 @@ class HttpUrl(internpaturl.InternPatternUrl, proxysupport.ProxySupport):
             # Note that content-encoding causes size differences since
             # the content data is always decoded.
             try:
-                self.size = int(self.getheader("Content-Length"))
+                self.size = int(self.headers["Content-Length"])
             except (ValueError, OverflowError):
                 pass
         else:
@@ -284,17 +284,6 @@ class HttpUrl(internpaturl.InternPatternUrl, proxysupport.ProxySupport):
                 # run connection plugins for old connection
                 self.aggregate.plugin_manager.run_connection_plugins(self)
 
-    def getheader(self, name, default=None):
-        """Get header value.
-
-        @return: header value or default of not found
-        @rtype: str
-        """
-        value = self.headers.get(name)
-        if value is None:
-            return default
-        return value
-
     def check_response(self):
         """Check final result and log it."""
         if (
@@ -314,7 +303,8 @@ class HttpUrl(internpaturl.InternPatternUrl, proxysupport.ProxySupport):
 
             if self.url_connection.status_code == 429:
                 self.add_warning(
-                    "Rate limited (Retry-After: %s)" % self.getheader(_("Retry-After")),
+                    "Rate limited (Retry-After: %s)"
+                    % self.headers.get(_("Retry-After")),
                     tag=WARN_URL_RATE_LIMITED,
                 )