Initializing diagnostics...

⚡ Live Data: Report generated fresh from authoritative registries. 🔄 Force Refresh
🤖 AI Intelligence Summary

The domain tsjbk.ru is registered with an undisclosed registrar. It resolves to IP address 157.22.185.156, hosted by JSC IOT. Email delivery is handled by Self-hosted or Custom. SPF authentication is published and valid. DMARC protection is missing or unconfigured. Web traffic is secured with an SSL certificate issued by YR2.

Domain Overview: tsjbk.ru

Domain Registration 🌐
Active N/A

Expires in N/A · DNSSEC: Unsigned

Email Security 🛡️
SPF: Pass DKIM: Detected DMARC: Missing

Self-hosted or Custom (2 MX)

SSL Certificate 🔒
Valid Chain 74 Days Left

Issuer: YR2 (2 SANs)

Server & Hosting 🖥️
200 nginx

Moscow, Russia (RU)

🌐 Domain & Registration Identity View Full Whois Details →

Domaintsjbk.ru
Website TitleFavicon N/A
RegisteredN/A
ExpiresN/A
Remaining ValidityN/A
Domain AgeN/A
RegistrarN/A
Domain StatusN/A i
DNSSEC Delegation Unsigned · Zone not signed with DNSSEC keys i
Authoritative Nameservers ns1.firstvds.ru, ns2.firstvds.ru i

🛡️ Email Security & Deliverability (SPF, DKIM, DMARC) View Complete Email Security Diagnostics →

Detected Email Provider 📬 Self-hosted or Custom
Primary Mail Server (MX) mail.tsjbk.ru (Priority: 10) · 2 MX servers configured i
SPF Record (Sender Policy) Pass · 2/10 DNS Lookups · Policy: ~all i
v=spf1 ip4:157.22.185.156 a mx ~all
DKIM Authentication Detected · Discovered: OpenDKIM / Postfix (dkim) i
DMARC Policy Missing i
SMTP Port 25 Status Online (669ms) · Inbound mail server handshake response

🖥️ Web Server, Hosting & Network View Full Server & Tech Details →

Web Server Software nginx i
HTTP Status Code 200 i
Server IP (IPv4) 157.22.185.156 View Geo Details →
IPv6 Address (AAAA) Not Configured
Reverse DNS (PTR) donorvolga.ru
Server Location 📍 Moscow, Russia (RU)
ASN Network & ISP AS29182 (JSC IOT)
Hosting Provider JSC IOT i
Control Panel Not Detected i
Technology Stack Nginx
HTTP Security Headers 1 / 6 Active (HSTS) Audit Details →
DNSBL Blacklist Reputation Clean (0/5 lists)

🔒 SSL/TLS Certificate Summary View Full SSL Certificate & Chain →

Primary Hostname (CN) tsjbk.ru · Multi-Domain SAN (Covers 2 hostnames)
SSL IssuerYR2
SSL Valid Till2026-12-27
Remaining Validity74 Days
Chain Status Valid Trusted Chain
Signature AlgorithmRSA-SHA256

Whois Ownership & Registration for tsjbk.ru

📄 View Raw Registry Response ↓

Domain Information i

Registrar Information i

Registrant Contact i

Contact information for this role is not provided or redacted.

Administrative Contact i

Contact information for this role is not provided or redacted.

Technical Contact i

Contact information for this role is not provided or redacted.

📄 View Raw Registry Response Legacy Whois (Port 43)
% TCI Whois Service. Terms of use:
% https://tcinet.ru/documents/whois_ru_rf.pdf (in Russian)
% https://tcinet.ru/documents/whois_su.pdf (in Russian)

domain:        TSJBK.RU
nserver:       ns1.firstvds.ru.
nserver:       ns2.firstvds.ru.
state:         REGISTERED, DELEGATED, UNVERIFIED
org:           
taxpayer-id:   
registrar:     BEGET-RU
admin-contact: https://beget.com/ru/domains/contact
created:       2017-09-23T19:42:01Z
paid-till:     2027-09-23T19:42:01Z
free-date:     2027-10-24
source:        TCI

Last updated on 2026-10-14T00:48:01Z

DNS Records for tsjbk.ru

NS Records i

NameDataCopy
tsjbk.ru. ns1.firstvds.ru.
tsjbk.ru. ns2.firstvds.ru.

A Records i

NameDataCopy
tsjbk.ru. 157.22.185.156

AAAA Records i

No AAAA records found.

WWW Records (www.tsjbk.ru) i

TypeHostValueCopy
A www.tsjbk.ru. 157.22.185.156

MX Records i

PriorityMail Server TargetCopy
10 mail.tsjbk.ru.
20 mail.tsjbk.ru.

TXT Records i

NameValueCopy
tsjbk.ru. v=spf1 ip4:157.22.185.156 a mx ~all

Email Security (MX, SPF, DKIM, DMARC, SMTP) for tsjbk.ru

Detected Email Provider
📬 Self-hosted or Custom
✓ Active MX Routing (2 Servers)

Mail Exchange (MX) Routing Records i

Priority Mail Server Hostname Copy
10 mail.tsjbk.ru
20 mail.tsjbk.ru

SPF Record Validation i

v=spf1 ip4:157.22.185.156 a mx ~all

Record Breakdown

PrefixMechanismValueDescription
+ v spf1 The SPF record version.
+ ip4 157.22.185.156 Match if the IP is in the given IPv4 range.
+ a Match if the sender's IP is one of the domain's A records.
+ mx Match if the sender's IP is one of the domain's MX records.
~ all Always matches. This should be the last mechanism.

Validation Summary

SPF Record Published Pass An SPF record was found.
Multiple SPF Records Pass Only one SPF record was found.
Included Lookups Pass The number of DNS lookups (2) is within the limit of 10.
Type PTR Check Pass The deprecated PTR mechanism was not found.
Characters After ALL Pass No mechanisms were found after the "all" mechanism.

Common DKIM Selectors i

OpenDKIM / Postfix (dkim)

NameDataCopy
dkim._domainkey.tsjbk.ru.v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9BmBeV77UlilvnelqsZzkpxPAV+lE4rv2HGNVCpPxg5GM4dP1Qejae7uk47nnjfTcPGJxj+MX9hYpxaMWqs4+nP7fi7CkaONwTq7DKLnMviB9GWhiz0Mu/Bi9b3ysnzNdNPBAzlSb1mSQV54egnWXl+S06mgwkHkhNzxQUOYF2QIDAQAB
dkim._domainkey.tsjbk.ru.v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+g0aOtnkAocYRYyBDmGzVKLXsSgRHzF5j5S63cdSZIFYax2gssjjbJmAalUAAgAwHqJi9sPp8EiGRcfqn6ngA+1t5VRu0IOliBpX63i/c5CGx3IYyt1tVKWLb9xkzsFO29lb9JLWjO4SovORNjjC5oufJCoZiwY4PVmVoJETrkQIDAQAB

🔍 Query Custom DKIM Selector

Live DNS Lookup

Using a custom or date-based selector (e.g. crm, newsletter, 2024)? Query its public key live on tsjbk.ru:

DMARC Policy Validation i

No DMARC record found to validate.

Validation Summary

DMARC Record Published Fail No DMARC record was found.

Optimization Suggestions

A DMARC record is essential for email security. It tells receiving servers what to do with emails that fail SPF and DKIM checks, protecting your domain from spoofing.

SMTP Connectivity Test (Port 25)

Mail ServerStatusLatencyBanner / Handshake Response
mail.tsjbk.ru Success 669ms 220 regiweb.ru ESMTP Exim 4.97 Ubuntu Wed, 14 Oct 2026 03:52:50 +0300

Server IP Blacklist Check (157.22.185.156)

  • Spamhaus ZEN: Clean
  • SpamCop: Clean
  • Barracuda: Clean
  • GBUdb Truncate: Clean
  • DroneBL: Clean
  • SSL/TLS Certificate Details for tsjbk.ru

    • Issuer: YR2
    • Expires In: 74 Days
    • Chain Status: Valid Chain

    🔒 SSL / TLS Protocol Support

    Excellent
    TLS protocol versions
    TLS 1.3 Enabled
    TLS 1.2 Enabled
    TLS 1.1 (deprecated) Disabled
    TLS 1.0 (deprecated) Disabled
    SSL protocol versions
    SSLv3 (deprecated) Disabled
    SSLv2 (deprecated) Disabled

    Main Leaf Certificate

    • Common Name: tsjbk.ru
    • SANs: DNS:tsjbk.ru, DNS:www.tsjbk.ru
    • Organization: N/A
    • Validity: Sep 28, 2026 to Dec 27, 2026
    • Algorithm: RSA-SHA256
    ↓ Intermediate CA Certificate ↓
    • Common Name: YR2
    • Organization: Let's Encrypt
    • Valid Till: Sep 03, 2028
    • Issuer: Root YR
    ↓ Intermediate CA Certificate ↓
    • Common Name: Root YR
    • Organization: ISRG
    • Valid Till: Sep 03, 2032
    • Issuer: ISRG Root X1

    Website & Server Intelligence for tsjbk.ru

    Website Identity

    TitleFavicon N/A
    Meta DescriptionN/A

    Hosting & Server Network

    IP Address157.22.185.156
    HTTP Status200 i
    Hosting ProviderJSC IOT i
    Web Servernginx i
    Control Panel Not Detected i

    Technology Profile

    • Nginx

    HTTP Security Headers

    Strict-Transport-Security Present
    Content-Security-Policy Missing
    X-Frame-Options Missing
    X-Content-Type-Options Missing
    Referrer-Policy Missing
    Permissions-Policy Missing

    IP Details & Geolocation

    IP Address 157.22.185.156
    Reverse DNS (PTR) donorvolga.ru
    CountryRussia (RU)
    RegionMoscow
    CityMoscow
    ZIP CodeN/A
    ASN29182
    Organization / ISPJSC IOT

    Understanding Diagnostic Terms for tsjbk.ru

    Domain Status (EPP)

    EPP status codes (e.g., clientTransferProhibited, active) indicating if a domain is locked against unauthorized transfer, pending renewal, or active.

    Registrar Information

    The authorized or accredited organization managing the domain reservation and authoritative registry delegation.

    Nameservers (NS)

    Authoritative servers that translate domain names into IP addresses and direct web visitors and mail traffic globally.

    A & AAAA Records

    Primary address records mapping your domain name directly to standard IPv4 (e.g., 192.0.2.1) and newer IPv6 server network addresses.

    MX (Mail Exchange)

    Priority-ranked records pointing inbound emails to designated mail server hosts (e.g., Google Workspace, Microsoft 365, Zoho).

    SPF & DMARC Security

    Email authentication standards that verify authorized sender IPs (SPF) and instruct receiving servers how to enforce security policies (DMARC).

    DKIM Signatures

    Cryptographic public key in DNS used by receiving mail servers to verify digital signatures on your emails, ensuring messages were not tampered with.

    SSL Certificate & Chain

    Establishes encrypted HTTPS connections and authenticates domain ownership via an intermediate certificate authority chain.

    Hosting Provider & ASN

    The physical server infrastructure where website files reside and the autonomous system network (ASN) routing global traffic.

    Reverse DNS (PTR)

    Pointer (PTR) records that map a server's IP address back to its canonical hostname, verifying server identity and preventing email spam rejection.

    HTTP Security Headers

    Directives like HSTS, CSP, and X-Frame-Options instructed by the server to protect browser visitors against XSS, clickjacking, and packet sniffing.

    ⚠️ Report Limitations & Data Sources

    • Data Currency: This report uses cached registry and DNS data (freshened within 4 hours) for high-speed resolution. Click "🔄 Refresh Live" to query directly against authoritative registries.
    • DNS Resolution & Propagation: Records are queried via Google Public DNS-over-HTTPS. Global DNS propagation may take up to 24–48 hours across different regional ISP resolvers during recent DNS record changes.
    • Completeness & Scope: This diagnostic tool analyzes standard authoritative records (A, AAAA, MX, NS, TXT, CNAME, SOA). It does not perform invasive brute-force subdomain scans or unauthenticated DNS zone transfers.
    • Email Deliverability & Reputation: The security analysis (SPF, DKIM, DMARC, and Port 25 SMTP handshake) reflects public DNS policies and inbound connection states. Recipient spam filters evaluate internal headers that cannot be checked from outside.
    • Reverse Proxies & CDNs: If a website is behind Cloudflare, Fastly, or another CDN/reverse proxy, the detected IP, web server software, and SSL edge certificate reflect the proxy tier.