diff --git a/logs.go b/logs.go
index 068f44a..747ede8 100644
--- a/logs.go
+++ b/logs.go
@@ -155,6 +155,34 @@ var DefaultLogs = []LogInfo{
 		Url: "ct2.digicert-ct.com/log",
 		MMD: 86400,
 	},
+	{
+		Key: mustDecodeBase64("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEAsVpWvrH3Ke0VRaMg9ZQoQjb5g/xh1z3DDa6IuxY5DyPsk6brlvrUNXZzoIg0DcvFiAn2kd6xmu4Obk5XA/nRg=="),
+		Url: "ct.cloudflare.com/logs/nimbus2018",
+		MMD: 86400,
+		CertExpiryBegin: makeTime(1514764800),
+		CertExpiryEnd: makeTime(1546300800),
+	},
+	{
+		Key: mustDecodeBase64("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEkZHz1v5r8a9LmXSMegYZAg4UW+Ug56GtNfJTDNFZuubEJYgWf4FcC5D+ZkYwttXTDSo4OkanG9b3AI4swIQ28g=="),
+		Url: "ct.cloudflare.com/logs/nimbus2019",
+		MMD: 86400,
+		CertExpiryBegin: makeTime(1546300800),
+		CertExpiryEnd: makeTime(1577836800),
+	},
+	{
+		Key: mustDecodeBase64("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE01EAhx4o0zPQrXTcYjgCt4MVFsT0Pwjzb1RwrM0lhWDlxAYPP6/gyMCXNkOn/7KFsjL7rwk78tHMpY8rXn8AYg=="),
+		Url: "ct.cloudflare.com/logs/nimbus2020",
+		MMD: 86400,
+		CertExpiryBegin: makeTime(1577836800),
+		CertExpiryEnd: makeTime(1609459200),
+	},
+	{
+		Key: mustDecodeBase64("MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAExpon7ipsqehIeU1bmpog9TFo4Pk8+9oN8OYHl1Q2JGVXnkVFnuuvPgSo2Ep+6vLffNLcmEbxOucz03sFiematg=="),
+		Url: "ct.cloudflare.com/logs/nimbus2021",
+		MMD: 86400,
+		CertExpiryBegin: makeTime(1609459200),
+		CertExpiryEnd: makeTime(1640995200),
+	},
 }
 
 // Logs which monitor certs from distrusted roots