SSL Report:
costargroup.com
(23.52.218.69)
Assessed on: Thu, 02 Oct 2025 19:30:07 UTC
| Clear cache
Summary
0
20
40
60
80
100
Certificate
Protocol Support
Key Exchange
Cipher Strength
Visit our documentation page
for more information, configuration guides, and books. Known issues are documented
here.
This server supports TLS 1.3. MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
|
Server Key and Certificate #1
|
|
| Subject |
gateway.costar.com
Fingerprint SHA256: 13532def3de9be3bf3c91545a2cae349f232a2e59fd3a85c99114c7c242f1725 Pin SHA256: Eh23njFYl4neiCbHkaY1awFrAr6r8HGIa+74m2b82zY= |
| Common names | gateway.costar.com |
| Alternative names | gateway.costar.com ads.csgpmarketplace.com ahprd1cdn.csgpimgs.com ahprd2cdn.csgpimgs.com ahprd3cdn.csgpimgs.com ahprd4cdn.csgpimgs.com ahprdcdn1.costar.com ahprdcdn1.csgpimgs.com ahprdcdn2.costar.com ahprdcdn2.csgpimgs.com ahprdcdn3.costar.com ahprdcdn3.csgpimgs.com ahprdcdn4.costar.com ahprdcdn4.csgpimgs.com auth.bizquest.com auth.costargroup.com authx.costargroup.com belbex.com costar.co.uk costar.com costargroup.com costarmobile.costar.com crm.costar.com ecom.csgpmarketplace.com entrepots.grecam.com extranet.grecam.com fieldresearch-bff.costargroup.com fulfillment.csgpmarketplace.com gateway-prd.costar.com grecam.com images1.cityfeet.com images1.showcase.com images2.showcase.com images3.showcase.com images4.showcase.com investor.costargroup.com investors.costargroup.com ir.costargroup.com listingmanager.costar.com m.showcase.com marketingcenter.costar.com mobile.costar.com mobilebff.costar.com oih.grecam.com order.csgpmarketplace.com partner-auth.costargroup.com payments.csgpmarketplace.com pds.cityfeet.com pds.costar.com pds.showcase.com pds1.costar.com pds2.costar.com pds3.costar.com preferences.costargroup.com pricing.csgpmarketplace.com product.costar.com product1.costar.com product2.costar.com product3.costar.com productmgmt.csgpmarketplace.com property.costar.com property2.costar.com property3.costar.com registration.costargroup.com s.csgpimgs.com secure.belbex.com secure.costargroup.com showcase-app.costar.com showcase-prd.costar.com signtechmobilebff.costargroup.com subscription.csgpmarketplace.com t0.products.costar.com t0.property.costar.com t0.property2.costar.com t0.property3.costar.com t1.products.costar.com t1.property.costar.com t1.property2.costar.com t1.property3.costar.com t2.products.costar.com t2.property.costar.com t2.property2.costar.com t2.property3.costar.com tax.csgpmarketplace.com vapi.costar.com vapi.costargroup.com we.costar.com widget.csgpmarketplace.com www.belbex.com www.costar.co.uk www.costar.com www.costargroup.com www.grecam.com |
| Serial Number | 07279f83c20c2ef53c4f1704f683d921 |
| Valid from | Mon, 04 Aug 2025 00:00:00 UTC |
| Valid until | Thu, 06 Aug 2026 23:59:59 UTC (expires in 10 months and 4 days) |
| Key | RSA 2048 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | DigiCert EV RSA CA G2
AIA: http://cacerts.digicert.com/DigiCertEVRSACAG2.crt |
| Signature algorithm | SHA256withRSA |
| Extended Validation | Yes |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL, OCSP CRL: http://crl3.digicert.com/DigiCertEVRSACAG2.crl OCSP: http://ocsp.digicert.com |
| Revocation status | Good (not revoked)
CRL ERROR: IOException occurred |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | Yes |
| TLS 1.2 | Yes |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
|
# TLS 1.3 (suites in server-preferred order)
|
||
TLS_AES_256_GCM_SHA384 (0x1302)
ECDH x25519 (eq. 3072 bits RSA) FS
|
256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303)
ECDH x25519 (eq. 3072 bits RSA) FS
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256P | |
TLS_AES_128_GCM_SHA256 (0x1301)
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
TLS_AES_128_CCM_8_SHA256 (0x1305)
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
TLS_AES_128_CCM_SHA256 (0x1304)
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
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# TLS 1.2 (suites in server-preferred order)
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TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)
ECDH secp256r1 (eq. 3072 bits RSA) FS
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256 | |
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
ECDH secp256r1 (eq. 3072 bits RSA) FS
|
128 | |
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)
ECDH secp256r1 (eq. 3072 bits RSA) FS
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256P | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
128 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)
WEAK
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256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
WEAK
|
128 | |
| (P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices) | ||
| Handshake Simulation | |||
| Android 4.4.2 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Android 5.0.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
| Android 6.0 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
| Android 7.0 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp256r1 FS |
| Android 8.0 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp256r1 FS |
| Android 8.1 | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
| Android 9.0 | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
| BingPreview Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Chrome 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
| Chrome 69 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Chrome 70 / Win 10 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 FS |
| Chrome 80 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 FS |
| Firefox 31.3.0 ESR / Win 7 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
| Firefox 47 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
| Firefox 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Firefox 62 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 FS |
| Googlebot Feb 2018 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| IE 11 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| IE 11 / Win 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| IE 11 / Win Phone 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDH secp256r1 FS |
| IE 11 / Win Phone 8.1 Update R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| IE 11 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Edge 15 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Edge 16 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Edge 18 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Edge 13 / Win Phone 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Java 8u161 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Java 11.0.3 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Java 12.0.1 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| OpenSSL 1.0.1l R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| OpenSSL 1.0.2s R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| OpenSSL 1.1.0k R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 FS |
| Safari 6 / iOS 6.0.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| Safari 7 / iOS 7.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| Safari 7 / OS X 10.9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| Safari 8 / iOS 8.4 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| Safari 8 / OS X 10.10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
| Safari 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Safari 9 / OS X 10.11 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Safari 10 / iOS 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Safari 10 / OS X 10.12 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Safari 12.1.2 / MacOS 10.14.6 Beta R | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
| Safari 12.1.1 / iOS 12.3.1 R | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
| Apple ATS 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| Yahoo Slurp Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
| YandexBot Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
|
# Not simulated clients (Protocol mismatch)
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|||
| Android 2.3.7 No SNI 2 |
Protocol mismatch (not simulated) |
||
| Android 4.0.4 |
Protocol mismatch (not simulated) |
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| Android 4.1.1 |
Protocol mismatch (not simulated) |
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| Android 4.2.2 |
Protocol mismatch (not simulated) |
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| Android 4.3 |
Protocol mismatch (not simulated) |
||
| Baidu Jan 2015 |
Protocol mismatch (not simulated) |
||
| IE 6 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 7 / Vista |
Protocol mismatch (not simulated) |
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| IE 8 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
||
| IE 8-10 / Win 7 R |
Protocol mismatch (not simulated) |
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| IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
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| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
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| Java 7u25 |
Protocol mismatch (not simulated) |
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| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
||
| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
||
| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
||
| (1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it. | |||
| (2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI. | |||
| (3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version. | |||
| (R) Denotes a reference browser or client, with which we expect better effective security. | |||
| (All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE). | |||
| (All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake. | |||
| Protocol Details | |
| Secure Renegotiation | Supported |
| Secure Client-Initiated Renegotiation | Yes |
| Insecure Client-Initiated Renegotiation | No |
| BEAST attack | Mitigated server-side (more info) |
| POODLE (SSLv3) | No, SSL 3 not supported (more info) |
| POODLE (TLS) | No (more info) |
| Zombie POODLE | No (more info)
TLS 1.2 : 0xc027
|
| GOLDENDOODLE | No (more info)
TLS 1.2 : 0xc027
|
| OpenSSL 0-Length | No (more info)
TLS 1.2 : 0xc027
|
| Sleeping POODLE | No (more info)
TLS 1.2 : 0xc027
|
| Downgrade attack prevention | Yes, TLS_FALLBACK_SCSV supported (more info) |
| SSL/TLS compression | No |
| RC4 | No |
| Heartbeat (extension) | No |
| Heartbleed (vulnerability) | No (more info) |
| Ticketbleed (vulnerability) | No (more info) |
| OpenSSL CCS vuln. (CVE-2014-0224) | No (more info) |
| OpenSSL Padding Oracle vuln. (CVE-2016-2107) |
No (more info) |
| ROBOT (vulnerability) | No (more info) |
| Forward Secrecy | Yes (with most browsers) ROBUST (more info) |
| ALPN | Yes h2 h2-14 http/1.1 |
| NPN | Yes http/1.1 http/1.0 |
| Session resumption (caching) | Yes |
| Session resumption (tickets) | Yes |
| OCSP stapling | Yes |
| Strict Transport Security (HSTS) | No |
| HSTS Preloading | Not in: Chrome Edge Firefox IE |
| Public Key Pinning (HPKP) | No (more info) |
| Public Key Pinning Report-Only | No |
| Public Key Pinning (Static) | No (more info) |
| Long handshake intolerance | No |
| TLS extension intolerance | No |
| TLS version intolerance | No |
| Incorrect SNI alerts | No |
| Uses common DH primes | No, DHE suites not supported |
| DH public server param (Ys) reuse | No, DHE suites not supported |
| ECDH public server param reuse | No |
| Supported Named Groups | secp256r1, x25519 (server preferred order) |
| SSL 2 handshake compatibility | Yes |
| 0-RTT enabled | No |
|
HTTP Requests
|
|
1 https://costargroup.com/
(HTTP/1.1 301 Moved Permanently)
| 1 | |
| Server | AkamaiGHost | |
| Content-Length | 0 | |
| Location | https://www.costargroup.com/ | |
| Date | Thu, 02 Oct 2025 19:28:58 GMT | |
| Connection | close | |
| Miscellaneous | |
| Test date | Thu, 02 Oct 2025 19:28:52 UTC |
| Test duration | 74.921 seconds |
| HTTP status code | 301 |
| HTTP forwarding | https://www.costargroup.com |
| HTTP server signature | AkamaiGHost |
| Server hostname | a23-52-218-69.deploy.static.akamaitechnologies.com |
SSL Report v2.4.1