Summary
- Registrar
- Tucows Domains Inc.
- Status
- clientUpdateProhibited
- Created on
- April 27, 2005
- Expires on
- April 27, 2031
- Name servers
- ns3.dnsimple.com, ns2.dnsimple.com, ns4.dnsimple.com, ns1.dnsimple.com
- Mail servers
- aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com
- DMARC
- Monitoring
- SPF
- Strict
- DKIM
- 4 keys found
- Website
- See the website
Spoofing protection (DMARC)
E-mails spoofing this domain are only reported, not blocked.
DMARC tells mail servers what to do with an e-mail that claims to come from twit.tv but fails SPF and DKIM checks.
- Policy
- Monitoring
- Subdomain policy
- Monitoring
- Messages covered
- 100%
- DKIM alignment
- Relaxed
- SPF alignment
- Relaxed
- Aggregate reports
- [email protected]
- Failure reports
- [email protected]
Record
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
Authorized senders (SPF)
E-mails sent by any other server are rejected.
SPF lists the servers allowed to send e-mails for twit.tv.
| Rule | Value | Result |
|---|---|---|
| include | _spf.google.com | Allowed |
| include | servers.mcsv.net | Allowed |
| include | sendgrid.net | Allowed |
| include | _spf.atlassian.net | Allowed |
| all | — | Rejected |
Top-level DNS lookups: 4 of 10 allowed
Record
v=spf1 include:_spf.google.com include:servers.mcsv.net include:sendgrid.net include:_spf.atlassian.net -all
E-mail signing (DKIM)
DKIM keys published by twit.tv under the most common selectors. Other keys may exist under selectors specific to each sending service.
| Selector | Likely service | Key | Status |
|---|---|---|---|
| Google Workspace | RSA 2048 bits | Active | |
| k1 | Mailchimp | RSA 1024 bits · short | Active |
| s1 | SendGrid | RSA 2048 bits | Active |
| s2 | SendGrid | RSA 1024 bits · short | Active |
RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.
MX, SPF, DKIM and DMARC: the e-mail records
Four DNS records make a domain's e-mail work. MX says where e-mails sent to twit.tv arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from twit.tv was really sent by this domain, which protects it against spoofing.
MX
An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @twit.tv address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.
Example record
twit.tv MX 10 mx1.twit.tv. twit.tv MX 20 mx2.twit.tv.
What the record contains
- 10, 20
- Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
- mx1.twit.tv.
- Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
- 0 .
- An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.
Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.
SPF
SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).
Example record
twit.tv TXT "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"
What the record contains
- v=spf1
- Identifies the record as an SPF policy. It must come first.
- ip4, ip6
- Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
- a, mx
- Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
- include
- Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
- -all, ~all
- Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).
A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.
DKIM
DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.twit.tv, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.
Example record
google._domainkey.twit.tv TXT "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"
What the record contains
- v=DKIM1
- Protocol version. Optional but recommended, in which case it must come first.
- k
- Key algorithm: rsa, the most common, or ed25519.
- p
- Public key, base64-encoded. An empty value means the key has been revoked.
- t
- Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.
Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.
DMARC
DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.twit.tv, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.
Example record
_dmarc.twit.tv TXT "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"
What the record contains
- v=DMARC1
- Identifies the record as a DMARC policy. It must come first.
- p
- Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
- sp
- Subdomain policy. Without it, subdomains follow the domain's policy.
- rua
- Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
- ruf
- Address that receives detailed failure reports, message by message. Few providers still send them.
- pct
- Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
- adkim, aspf
- DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).
To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.
DNS records of twit.tv
IP addresses (A and AAAA)
An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.
| Type | IP address |
|---|---|
| A | 13.249.228.18 |
| A | 13.249.228.115 |
| A | 13.249.228.20 |
| A | 13.249.228.49 |
Name servers (NS)
NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.
| Server | IP address |
|---|---|
| ns3.dnsimple.com | 199.247.154.53 |
| ns2.dnsimple.com | 199.247.153.53 |
| ns4.dnsimple.com | 199.247.155.53 |
| ns1.dnsimple.com | 199.247.152.53 |
Mail servers (MX)
MX records point to the servers that receive e-mails sent to the domain, that is to @twit.tv addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.
| Priority | Server | IP address |
|---|---|---|
| 1 | aspmx.l.google.com | 64.233.166.26 |
| 5 | alt1.aspmx.l.google.com | 192.178.213.26 |
| 5 | alt2.aspmx.l.google.com | 142.251.127.27 |
| 10 | alt3.aspmx.l.google.com | 172.253.148.26 |
| 10 | alt4.aspmx.l.google.com | 142.250.147.27 |
TXT records
TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.twit.tv.
| Name | Content |
|---|---|
| twit.tv | google-site-verification=8bBTVDOvWSXZbGcjXwQhO7PheDie58A7SPgnwhTCHQw |
| twit.tv | google-site-verification=lKq8YEvbWjvwBOFQal8DyTIItOxmxiFNc93-41DWjaU |
| twit.tv | google-site-verification=vfzSkbASq2qaa00yfI5nMaMxrC9KKeqH6s5PgIZ173s |
| twit.tv | have-i-been-pwned-verification=5b1738521ec7467f4b4e318d8d607973 |
| twit.tv | parsec-domain-verification=td_2c3e7bXDuK7Qw5UqWZ6HYw7Cldn |
| twit.tv | v=spf1 include:_spf.google.com include:servers.mcsv.net include:sendgrid.net include:_spf.atlassian.net -all |
| twit.tv | atlassian-domain-verification=oK0JkmC5qNum6n4ntkeoI2LcMYZ+njUQpDRHQzBiP22SF5Gdab9nWReSxOOweH2y |
| twit.tv | MS=ms44533268 |
| twit.tv | google-site-verification=pWFffbTzVhj39OsGI3ImChf5oFXHLS-vosm_mPEw5ME |
| twit.tv | TG=b27kxn |
| twit.tv | brave-ledger-verification=8fc6d5e5534b216067454f7e914476a3dc7e5374532dd85993fff54d3f0ce272 |
| twit.tv | bw=8hU5KF/lPWnAg09HfomNlKq2hjUbQJoclKqMtyxZpzwn |
| _dmarc.twit.tv | v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected] |
| google._domainkey.twit.tv | v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkx1gzEoLOgg0WuoQXKVbsoudm/PYG5fb1C2GIHbuz6qfdz+dTw2wtSzfr1n8ekjPVbo7DSAoJ2rCK315G+694eW42RPDTgc5i3OSRmnlLen0VlKpTKmAUI3B4VzI58GsvI1rs9R+bARU+Dyxkw/OC5iJkAKDxWFphEFZvyJdBO3ES0Nkb4mobAm7cwSRusYOH+l16HZdD6PHsUKxysSzk7w0SC+tx+76UUR3aj83ASbI6QqE5XQEFSgePP06PpoFAXm7itcpffCroiD5hGJchlJQobkEDUfB+husrA9NJuuVx5sdWqI1BQk9ShpncCumtYWQB6u0bYE/BTcDUfHPBQIDAQAB |
| k1._domainkey.twit.tv | k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB; |
| s1._domainkey.twit.tv | k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1gU64wM331J2x42nJ5l0VWV9mz2yyXOQwlgqvQ5eOkANWTV43m7GSCUU9MBBKHDpm6+8o9nY+5vm506tZSqv06iEKhL3O6jjMeYBg44TrdMJ+5i0V2m9oxo7gSFBsZLKWec19eULbn2egjBTwSFRrRGpLL8QTFE7r3kIL/ILwtNQttRYbi+LUB0YZGowoPJarkeq8viT9vPy1Xvx8jl+rFM4EdqO10KEjBqkF2lrsfhec03XNooI8EnNhvD3nl++KaZm7/yHiZal05VxoLajbUDmC89iK7H/JpGOpaOqFT9YXLrkvqv9S1ehYg5UpaMMkedAxb8yP6EZAYxBEBEewIDAQAB |
| s2._domainkey.twit.tv | k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8tvSmzHnj/KkHIVAuonmai05ZFiat3Js8GETYTxg0Pfb3773i53A56TIx89vrodwSgVPFTQFqQ1Tg/KOpQM6YlCYFWpirTqtwBBs7ty8tVV6e1qgFkucClqdsdkyg9FY/+orKQ51ee1z8RVt4XhEi7dQJQAMFJMn06/hPHR1UKQIDAQAB |
Related IP addresses
IPv4 addresses used by twit.tv: website, name servers, mail servers and senders authorized by SPF.
| IP address | Used for | /24 block |
|---|---|---|
| 13.249.228.18 | Website | 13.249.228.0/24 |
| 13.249.228.115 | Website | 13.249.228.0/24 |
| 13.249.228.20 | Website | 13.249.228.0/24 |
| 13.249.228.49 | Website | 13.249.228.0/24 |
| 199.247.154.53 | Name server ns3.dnsimple.com | 199.247.154.0/24 |
| 199.247.153.53 | Name server ns2.dnsimple.com | 199.247.153.0/24 |
| 199.247.155.53 | Name server ns4.dnsimple.com | 199.247.155.0/24 |
| 199.247.152.53 | Name server ns1.dnsimple.com | 199.247.152.0/24 |
| 64.233.166.26 | Mail server aspmx.l.google.com | 64.233.166.0/24 |
| 192.178.213.26 | Mail server alt1.aspmx.l.google.com | 192.178.213.0/24 |
| 142.251.127.27 | Mail server alt2.aspmx.l.google.com | 142.251.127.0/24 |
| 172.253.148.26 | Mail server alt3.aspmx.l.google.com | 172.253.148.0/24 |
| 142.250.147.27 | Mail server alt4.aspmx.l.google.com | 142.250.147.0/24 |
WHOIS of the domain twit.tv
Domain Name: twit.tv Registry Domain ID: REDACTED FOR PRIVACY Registrar WHOIS Server: whois.opensrs.net Registrar URL: www.opensrs.com Updated Date: 2022-11-22T17:25:00Z Creation Date: 2005-04-27T18:51:13Z Registry Expiry Date: 2031-04-27T18:51:13Z Registrar: Tucows Domains Inc. Registrar IANA ID: 69 Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +1.4165350123 Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Registry Registrant ID: REDACTED FOR PRIVACY Registrant Name: REDACTED FOR PRIVACY Registrant Organization: Data Protected Registrant Street: REDACTED FOR PRIVACY Registrant Street: REDACTED FOR PRIVACY Registrant Street: REDACTED FOR PRIVACY Registrant City: REDACTED FOR PRIVACY Registrant State/Province: ON Registrant Postal Code: REDACTED FOR PRIVACY Registrant Country: CA Registrant Phone: REDACTED FOR PRIVACY Registrant Phone Ext: REDACTED FOR PRIVACY Registrant Fax: REDACTED FOR PRIVACY Registrant Fax Ext: REDACTED FOR PRIVACY Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Registry Admin ID: Admin Name: Admin Organization: Admin Street: Admin Street: Admin Street: Admin City: Admin State/Province: Admin Postal Code: Admin Country: Admin Phone: Admin Phone Ext: Admin Fax: Admin Fax Ext: Admin Email: Registry Tech ID: REDACTED FOR PRIVACY Tech Name: REDACTED FOR PRIVACY Tech Organization: REDACTED FOR PRIVACY Tech Street: REDACTED FOR PRIVACY Tech Street: REDACTED FOR PRIVACY Tech Street: REDACTED FOR PRIVACY Tech City: REDACTED FOR PRIVACY Tech State/Province: REDACTED FOR PRIVACY Tech Postal Code: REDACTED FOR PRIVACY Tech Country: REDACTED FOR PRIVACY Tech Phone: REDACTED FOR PRIVACY Tech Phone Ext: REDACTED FOR PRIVACY Tech Fax: REDACTED FOR PRIVACY Tech Fax Ext: REDACTED FOR PRIVACY Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Name Server: ns1.dnsimple.com Name Server: ns2.dnsimple.com Name Server: ns3.dnsimple.com Name Server: ns4.dnsimple.com DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of WHOIS database: 2026-10-02T22:16:30Z <<< For more information on Whois status codes, please visit https://icann.org/epp The Service is provided so that you may look up certain information in relation to domain names that we store in our database. Use of the Service is subject to our policies, in particular you should familiarise yourself with our Acceptable Use Policy and our Privacy Policy. The information provided by this Service is 'as is' and we make no guarantee of it its accuracy. You agree that by your use of the Service you will not use the information provided by us in a way which is: * inconsistent with any applicable laws, * inconsistent with any policy issued by us, * to generate, distribute, or facilitate unsolicited mass email, promotions, advertisings or other solicitations, or * to enable high volume, automated, electronic processes that apply to the Service. You acknowledge that: * a response from the Service that a domain name is 'available', does not guarantee that is able to be registered, * we may restrict, suspend or terminate your access to the Service at any time, and * the copying, compilation, repackaging, dissemination or other use of the information provided by the Service is not permitted, without our express written consent. This information has been prepared and published in order to represent administrative and technical management of the TLD. We may discontinue or amend any part or the whole of these Terms of Service from time to time at our absolute discretion. Domain Name: TWIT.TV Registry Domain ID: 86800899_DOMAIN_TV-GDREG Registrar WHOIS Server: whois.tucows.com Registrar URL: http://tucowsdomains.com Updated Date: 2022-03-29T17:21:50 Creation Date: 2005-04-27T18:51:13 Registrar Registration Expiration Date: 2031-04-27T18:51:13 Registrar: TUCOWS.COM, CO. Registrar IANA ID: 69 Reseller: Hover Domain Status: clientTransferProhibited Domain Status: clientUpdateProhibited Registry Registrant ID: Registrant Name: REDACTED FOR PRIVACY Registrant Organization: REDACTED FOR PRIVACY Registrant Street: REDACTED FOR PRIVACY Registrant City: REDACTED FOR PRIVACY Registrant State/Province: California Registrant Postal Code: REDACTED FOR PRIVACY Registrant Country: US Registrant Phone: REDACTED FOR PRIVACY Registrant Phone Ext: Registrant Fax: REDACTED FOR PRIVACY Registrant Fax Ext: Registrant Email: https://tieredaccess.com/contact/1b644543-9218-45e6-8249-e081979ad448 Registry Tech ID: Tech Name: REDACTED FOR PRIVACY Tech Organization: REDACTED FOR PRIVACY Tech Street: REDACTED FOR PRIVACY Tech City: REDACTED FOR PRIVACY Tech State/Province: REDACTED FOR PRIVACY Tech Postal Code: REDACTED FOR PRIVACY Tech Country: REDACTED FOR PRIVACY Tech Phone: REDACTED FOR PRIVACY Tech Phone Ext: Tech Fax: REDACTED FOR PRIVACY Tech Fax Ext: Tech Email: REDACTED FOR PRIVACY Name Server: ns1.dnsimple.com Name Server: ns3.dnsimple.com Name Server: ns4.dnsimple.com Name Server: ns2.dnsimple.com DNSSEC: unsigned Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +1.4165350123 >>> Last update of WHOIS database: 2026-10-02T22:16:30Z <<< Registration Service Provider: Hover, [email protected] +1.8667316556 https://support.hover.com The Data in the Tucows Registrar WHOIS database is provided to you by Tucows for information purposes only, and may be used to assist you in obtaining information about or related to a domain name's registration record. Tucows makes this information available "as is," and does not guarantee its accuracy. By submitting a WHOIS query, you agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to: a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass, unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of any Registry Operator or ICANN-Accredited registrar, except as reasonably necessary to register domain names or modify existing registrations. The compilation, repackaging, dissemination or other use of this Data is expressly prohibited without the prior written consent of Tucows. Tucows reserves the right to terminate your access to the Tucows WHOIS database in its sole discretion, including without limitation, for excessive querying of the WHOIS database or for failure to otherwise abide by this policy. Tucows reserves the right to modify these terms at any time. By submitting this query, you agree to abide by these terms. NOTE: THE WHOIS DATABASE IS A CONTACT DATABASE ONLY. LACK OF A DOMAIN RECORD DOES NOT SIGNIFY DOMAIN AVAILABILITY. % Query time: 1170 msec % WHEN: Fri Oct 02 22:16:29 UTC 2026