Site report for https://duckduckgo.com
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| Site title | DuckDuckGo — Privacy, simplified. |
|---|---|
| Date first seen | January 2008 |
| Site rank | 17 |
| Netcraft Risk Rating | 0/10 |
| Primary language | English |
|---|---|
| Description | The Internet privacy company that empowers you to seamlessly take control of your personal information online, without any tradeoffs. |
| Keywords | Not Present |
| Site | https://duckduckgo.com |
|---|---|
| Netblock Owner | CloudFront DUB6 |
| Domain | duckduckgo.com |
| Nameserver | dns1.p05.nsone.net |
| IP address | 176.34.155.23 (VirusTotal) |
| DNS admin | hostmaster@nsone.net |
| IPv6 address | Not Present |
| Reverse DNS | ec2-176-34-155-23.eu-west-1.compute.amazonaws.com |
| Domain registrar | namecheap.com |
|---|---|
| Nameserver organisation | whois.name.com |
| Organisation | WhoisGuard, Inc., P.O. Box 0823-03411, Panama, 00000, Panama |
| Hosting company | Amazon - EU West (Ireland) datacenter |
| Top Level Domain | Commercial entities (.com) |
| DNS Security Extensions | unknown |
| Hosting country | ie |
| IP range | Country | Name | Description |
|---|---|---|---|
| 0.0.0.0-255.255.255.255 | N/A | IANA-BLK | The whole IPv4 address space |
| ↳ 176.0.0.0-176.255.255.255 | Netherlands | RIPE-176 | RIPE Network Coordination Centre |
| ↳ 176.34.0.0-176.34.255.255 | Ireland | IE-AMAZON-20110523 | |
| ↳ 176.34.152.0-176.34.159.255 | Netherlands | AMAZON-EU-DUB6-CF | CloudFront DUB6 |
| ↳ 176.34.155.23 | Netherlands | AMAZON-EU-DUB6-CF | CloudFront DUB6 |
| Assurance | Organisation validation |
|---|---|
| Common name | *.duckduckgo.com |
| Organisation | Duck Duck Go, Inc. |
| State | Pennsylvania |
| Country | US |
| Organisational unit | Not Present |
| Subject Alternative Name | *.duckduckgo.com, duckduckgo.com |
| Validity period | From Aug 9 2019 to Oct 30 2020 (14 months, 3 weeks) |
| Matches hostname | Yes |
| Server | nginx |
| Public key algorithm | rsaEncryption |
| Protocol version | TLSv1.2 |
| Public key length | 2048 |
| Certificate check | ok |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 0x031e36c9d48a6e577a9daf6982a757e3 |
| Cipher | ECDHE-RSA-AES128-GCM-SHA256 |
| Version number | 0x02 |
| Perfect Forward Secrecy | Yes |
|---|---|
| Next Protocol Negotiation | h2,http/1.1 |
| Supported TLS Extensions | RFC5746 renegotiation info, RFC4366 server name, RFC4492 EC point formats, RFC5077 session ticket, RFC4366 status request, Next Protocol Negotiation, unknown |
| Issuing organisation | DigiCert Inc |
| Issuer common name | DigiCert SHA2 Secure Server CA |
| Issuer unit | Not Present |
| Issuer location | Not Present |
| Issuer country | US |
| Issuer state | Not Present |
| Certificate Revocation Lists |
http://crl3.digicert.com/ssca-sha2-g6.crl http://crl4.digicert.com/ssca-sha2-g6.crl |
| Certificate Hash | FO1+dZjacLRLCV6yK9r9SR4AW/s |
| Public Key Hash | 420a177c4d3a7b8f51ce9935400a780c8d59cb716112c99eba686d589e237038 |
| OCSP servers | http://ocsp.digicert.com - 100% uptime in the past 24 hours |
| OCSP stapling response | Certificate valid |
| OCSP data generated | Jan 22 10:03:27 2020 GMT |
| OCSP data expires | Jan 29 09:18:27 2020 GMT |
Signed Certificate Timestamps (SCTs)
| Source | Log | Timestamp | Signature Verification |
|---|---|---|---|
| Certificate | Google Pilot pLkJkLQYWBSHuxOizGdwCjw1mAT5G9+443fNDsgN3BA= |
2019-08-09 14:30:19 | Success |
| Certificate | DigiCert 2 h3W/51l8+IxDmV+9827/Vo1HVjb/SrVgwbTq/16ggw8= |
2019-08-09 14:30:19 | Success |
SSLv3/POODLE
This site does not support the SSL version 3 protocol.
More information about SSL version 3 and the POODLE vulnerability.
Heartbleed
The site offered the Heartbeat TLS extension prior to the Heartbleed disclosure, but is using a new certificate and no longer offers Heartbeat.
This test does not exploit the Heartbleed vulnerability but uses information from conventional HTTPS requests. More information about Heartbleed detection.
| Common name | DigiCert Global Root CA |
|---|---|
| Organisational unit | www.digicert.com |
| Organisation | DigiCert Inc |
| Validity period | From 2006-11-10 to 2031-11-10 |
| Common name | DigiCert SHA2 Secure Server CA |
|---|---|
| Organisational unit | Not Present |
| Organisation | DigiCert Inc |
| Validity period | From 2013-03-08 to 2023-03-08 |
| Netblock owner | IP address | OS | Web server | Last seen |
|---|---|---|---|---|
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 46.51.179.90 | Linux | nginx | 16-Jan-2020 |
| CloudFront DUB6 | 176.34.155.23 | Linux | nginx | 7-Jan-2020 |
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 79.125.105.113 | Linux | nginx | 14-Dec-2019 |
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 46.51.179.90 | Linux | nginx | 15-Nov-2019 |
| CloudFront DUB6 | 176.34.155.23 | Linux | nginx | 6-Nov-2019 |
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 79.125.105.113 | Linux | nginx | 23-Oct-2019 |
| CloudFront DUB6 | 176.34.155.23 | Linux | nginx | 3-Oct-2019 |
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 79.125.105.113 | Linux | nginx | 6-Sep-2019 |
| CloudFront DUB6 | 176.34.155.23 | Linux | nginx | 30-Aug-2019 |
| Amazon Web Services, Elastic Compute Cloud, EC2, EU | 46.51.179.90 | Linux | nginx | 13-Aug-2019 |
A host's Sender Policy Framework (SPF) describes who can send mail on its behalf. This is done by publishing an SPF record containing a series of rules. Each rule consists of a qualifier followed by a specification of which domains to apply this qualifier to. For more information please see open-spf.org.
| Qualifier | Mechanism | Argument |
|---|---|---|
| + (Pass) | include | mailer.duckduckgo.com |
| + (Pass) | include | amazonses.com |
| + (Pass) | include | spf.protection.outlook.com |
| - (Fail) | all |
DMARC (Domain-based Message Authentication, Reporting and Conformance) is a mechanism for domain owners to indicate how mail purporting to originate from their domain should be authenticated. It builds on SPF and DKIM, providing a method to set policy and to give reporting of failures. For more information please see dmarc.org.
Raw DMARC record:
v=DMARC1; p=none; rua=mailto:dmarc@duckduckgo.com
| Tag | Field | Value |
|---|---|---|
| p=none | Requested handling policy | None: no specific action to be taken regarding delivery of messages. |
| rua=mailto:dmarc@duckduckgo.com | Reporting URI(s) for aggregate data | dmarc@duckduckgo.com |
Web Trackers are third-party resources loaded onto a webpage. Trackable resources include social sharing widgets, javascript files, and images. These trackers can be used to monitor individual user behaviour across the web. Data derived from these trackers are primarily used for advertising or analytics purposes.
No known trackers were identified.
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Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network (typically the Internet). Platform as a service (PaaS) is a category of cloud computing services that provide a computing platform and a solution stack as a service.
Technology Description Popular sites using this technology Amazon Web Services - EC2 Cloud computing service (Elastic Compute Cloud) headway-widget.net, s.thebrighttag.com, usermatch.targeting.unrulymedia.com -
Any network related service or technology.
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Includes all the main technologies that Netcraft detects as running on the server such as PHP.
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Includes all the main technologies that run on the browser (such as JavaScript and Adobe Flash).
Technology Description Popular sites using this technology JavaScript Widely-supported programming language commonly used to power client-side dynamic content on websites secure-assets.rubiconproject.com -
A character encoding system consists of a code that pairs each character from a given repertoire with something else such as a bit pattern, sequence of natural numbers, octets, or electrical pulses in order to facilitate the transmission of data (generally numbers or text) through telecommunication networks or for data storage.
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HTTP compression is a capability that can be built into web servers and web clients to make better use of available bandwidth, and provide greater transmission speeds between both.
Technology Description Popular sites using this technology Gzip Content Encoding Gzip HTTP Compression protocol www.seznam.cz, www.tsetmc.com, dco-assets.everestads.net -
Web browser targeting enables software applications to make use of specific functions of the browser as well as optimizing the application for specific browser versions.
Technology Description Popular sites using this technology Document Compatibility Mode A meta-tag used in Internet Explorer 8 to enable compatibility mode www.msn.com, www.microsoft.com, teams.microsoft.com Expect Certificate Transparency Header Enforce Certificate Transparency requirements www.mozilla.org, www.kraken.com, www.researchgate.net X-Content-Type-Options Browser MIME type sniffing is disabled www.bitmex.com, static.addtoany.com, outlook.live.com Strict Transport Security Web security policy mechanism whereby a web server declares that complying user agents are to interact with it using only secure HTTP connections login.microsoftonline.com, medium.com, t.co X-Frame-Options Same Origin Do not allow this site to be rendered within an iframe www.google.com, accounts.google.com, vk.com Referrer Policy Restrict referrer information included in subsequent requests www.upwork.com, paragon-na.amazon.com, pro.coinbase.com Content Security Policy Detect and mitigate attacks in the browser dtm.advertising.com, yandex.ru, vars.hotjar.com X-XSS-Protection Block Block pages on which cross-site scripting is detected www.ebay.com, trello.com, self-repair.mozilla.org -
A Document Type Declaration, or DOCTYPE, is an instruction that associates a particular SGML or XML document (for example, a webpage) with a Document Type Definition (DTD).
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HTML5 is a markup language for structuring and presenting content for the World Wide Web and a core technology of the Internet. It is the fifth revision of the HTML standard.
Technology Description Popular sites using this technology Viewport meta tag HTML5 tag usually used for mobile optimization -
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation semantics (the look and formatting) of a document written in a markup language (such as XHTML).
Technology Description Popular sites using this technology External Styles defined within an external CSS file www.udemy.com, www.linkedin.com, www.amazon.fr