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This certificate should be trusted by all major web browsers
+++++++----

American Express Travel Related Services Company Inc
Phoenix, Arizona
US

SSL Certificate correctly installed

This certificate should be trusted by all major web browsers

This website has the possibility to send data across a secure connection. This is no guarantee that this indeed will happen, it is however a good indication. To be sure we advise you, before you submit any personal information, to check if the url in the address bar starts with https:// in stead of the insecure http:// The additional 's' stands for security.

  • - SSL Certificate is not expired
  • - Site is listed in the certificate
  • - Organisation details are listed
  • - Encryption strength is at least 2048-bit
  • - Signature Algorithm is strong
  • - Accepting low encryption cipher suites
  • - No connection upgrade to 128-bit for old browsers
  • - No Extended Validation on company details
  • - No Debian weak key present
  • - No known security issues for this Certificate Authority

General info

The SSL Certificate for americanexpress.com is signed by GeoTrust SSL CA - G4 wich is signed by GeoTrust Global CA . The SSL Certificate will expire on Thursday 5 May 2016 this means it is still valid for 364 days.

Send me a reminder when this SSL Certificate is about to expire. Send me a reminder when this SSL Certificate is about to expire.

Subject Alternative Name (SAN)

This SSL Certificate has 21 subject alternative name(s). This means that this SSL Certificate is not only valid for americanexpress.com but in this case also for the alternative names rewards.americanexpress.com, secure.cmax.americanexpress.com, www.amexmobile.com, amexmobile.com, cardapp.americanexpress.com, cms.americanexpress.com, home-int.americanexpress.com, home.americanexpress.com, m.americanexpress.com, network.americanexpress.com, secure.americanexpress.com, wwwaiu.americanexpress.com, www.americanexpress.com, community.americanexpress.com, rewards.aexp-static.com, icm.aexp-static.com, m.aexp-static.com, pub.aexp-static.com, web.aexp-static.com, www.aexp-static.com, americanexpress.com

Organisation details +

The identity of the owner of this domain/certificate has been validated. The details can be retrieved from the certificate.

Encryption strength ++

The SSL Certificate has a 2048-bit length private key. Longer RSA keys are required to provide security as computing capabilities increase. The recommended RSA key-length is 2048 bits. Although a 4096-bit RSA key length is more secure than the common 2048-bit length, it is also slower and might effect server performance. Most web servers continue to use 2048-bit RSA keys without negatively influencing security for normal operations

Signature Algorithm +

The SSL Certificate is signed with a sha256WithRSAEncryption method which is an accepted secure standard algorithm for signing certificates. The less secure MD5 algorithms can be potentially manipulated during the signing process and should no longer by used. [read more ...]

Cipher Suite -

This site accepts connections with a weak cipher suite! Cipher suites with an encryption lower than 128 bit are not safe and should not be accepted. Normally modern browsers don’t use weak ciphers by default, but on this site hackers could force a lower encryption session. [read more ...]

Server Gated Cryptography (SGC) -

This certificate is not able to create a 128-bit secure connection for older browsers. The certificate has no SGC, Server Gated Cryptography support wich will upgrade a 40-bit connection to a secure 128-bit connection.

Extended Validation (EV) -

This SSL Certificate will not display a green address bar in the visitors browser, nor the identity of the website owner or the Certificate Authority. EV SSL Certificates have the highest level of trust and security.

Certificate Authority Security Issues -

There are no known issues with the Certificate Authority who issued this SSL Certificate.

Debian Weak Key +

This SSL Certificate is not affected by the Debian weak key problem. Between September 2006 and May 2008, Debian-based servers have generated weak keys. Once a hacker finds a server using a weak key, he can use the public key to find the private key.

americanexpress.com

Certificate information:
American Express Travel Related Services Company Inc
Phoenix, Arizona
US

Valid from:
Sunday 3 May 2015

Valid till:
Thursday 5 May 2016

keyLength:
2048

Signature Algorithm:
sha256WithRSAEncryption

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-----END CERTIFICATE-----
Certificate chain
GeoTrust SSL CA - G4

Certificate information:
GeoTrust Inc.
US

Valid from:
Monday 8 September 2014

Valid till:
Friday 20 May 2022

keyLength:
2048

Signature Algorithm:
sha256WithRSAEncryption

-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
Certificate chain
GeoTrust Global CA

Certificate information:
GeoTrust Inc.
US

Valid from:
Tuesday 21 May 2002

Valid till:
Saturday 21 May 2022

keyLength:
2048

-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----