diff --git a/index.js b/index.js
index 989354d..2b158d5 100644
--- a/index.js
+++ b/index.js
@@ -9,8 +9,8 @@ module.exports = {
   mobile: /^1\d{10}$/,
   qq: /^[1-9]\d{4,10}$/,
   number: /^[-+]?(?:\d+(?:\.\d*)|(?:\d*\.)?\d+)$/,
-  email: /^.$/,
-  url: /^.$/,
-  ipv4: /^.$/,
-  idcard: /^.$/,
+  email: /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/,
+  url: /^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$/,
+  ipv4: /^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.(?!$)|$)){4}$/,
+  idcard: /^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/,
 };
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