Email Security Check for master-garz.ru – SPF, DKIM, DMARC & SMTP

⚡ Loaded from cache (2026-10-23 01:33:23 IST). 🔄 Refresh Live

🤖 AI Intelligence Summary

The domain master-garz.ru is registered with an undisclosed registrar. It resolves to IP address 178.216.102.177, hosted by K2 Integration JSC. 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: master-garz.ru

Domain Registration 🌐

Active N/A

Expires in N/A · DNSSEC: Unsigned

Email Security 🛡️

SPF: Pass DKIM: Not Detected DMARC: Missing

Self-hosted or Custom (1 MX)

SSL Certificate 🔒

Valid Chain 33 Days Left

Issuer: YR2 (2 SANs)

Server & Hosting 🖥️

200 nginx

Horlivka, Donetsk, Ukraine (UA)

🌐 Domain & Registration Identity View Full Whois Details →

Domain	master-garz.ru
Website Title	Сухие строительные смеси Мастер Гарц
Registered	N/A
Expires	N/A
Remaining Validity	N/A
Domain Age	N/A
Registrar	N/A
Domain Status	N/A i
DNSSEC Delegation	Unsigned · Zone not signed with DNSSEC keys i
Authoritative Nameservers	`ns2.ced-rus.ru, ns3.ced-rus.ru, ns1.ced-rus.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.master-garz.ru (Priority: 10)` · 1 MX server configured i
SPF Record (Sender Policy)	Pass · 1/10 DNS Lookups · Policy: `-all` i `v=spf1 ip4:178.216.102.177 a:mail.master-garz.ru -all`
DKIM Authentication	Not Detected · (No common third-party selector found; custom keys may be configured) i
DMARC Policy	Missing i
SMTP Port 25 Status	Online (915ms) · 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)	178.216.102.177 View Geo Details →
IPv6 Address (AAAA)	`Not Configured`
Reverse DNS (PTR)	`c2-178-216-102-177.elastic.k2.cloud`
Server Location	📍 Horlivka, Donetsk, Ukraine (UA)
ASN Network & ISP	`AS51219 (K2 Integration JSC)`
Hosting Provider	K2 Integration JSC i
Control Panel	Not Detected i
Technology Stack	Nginx jQuery Google Fonts Recaptcha
HTTP Security Headers	1 / 6 Active (X-Content) Audit Details →
DNSBL Blacklist Reputation	Listed on 1 lists

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

Primary Hostname (CN)	master-garz.ru · Multi-Domain SAN (Covers 2 hostnames)
SSL Issuer	YR2
SSL Valid Till	2026-11-25
Remaining Validity	33 Days
Chain Status	Valid Trusted Chain
Signature Algorithm	`RSA-SHA256`

Whois Ownership & Registration for master-garz.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:        MASTER-GARZ.RU
nserver:       ns1.ced-rus.ru.
nserver:       ns2.ced-rus.ru.
nserver:       ns3.ced-rus.ru.
state:         REGISTERED, DELEGATED, VERIFIED
org:           
taxpayer-id:   
registrar:     RU-CENTER-RU
admin-contact: https://www.nic.ru/whois
created:       2014-04-29T07:05:09Z
paid-till:     2027-04-29T08:05:09Z
free-date:     2027-05-30
source:        TCI

Last updated on 2026-10-22T20:03:02Z

DNS Records for master-garz.ru

NS Records i

Name	Data	Copy
master-garz.ru.	`ns2.ced-rus.ru.`
master-garz.ru.	`ns3.ced-rus.ru.`
master-garz.ru.	`ns1.ced-rus.ru.`

A Records i

Name	Data	Copy
master-garz.ru.	`178.216.102.177`

AAAA Records i

No AAAA records found.

WWW Records (www.master-garz.ru) i

Type	Host	Value	Copy
A	www.master-garz.ru.	`178.216.102.177`

MX Records i

Priority	Mail Server Target	Copy
10	`mail.master-garz.ru.`

TXT Records i

Name	Value	Copy
master-garz.ru.	`v=spf1 ip4:178.216.102.177 a:mail.master-garz.ru -all`

Email Security (MX, SPF, DKIM, DMARC, SMTP) for master-garz.ru

Detected Email Provider

📬 Self-hosted or Custom

✓ Active MX Routing (1 Server)

Mail Exchange (MX) Routing Records i

Priority	Mail Server Hostname	Copy
10	`mail.master-garz.ru`

SPF Record Validation i

v=spf1 ip4:178.216.102.177 a:mail.master-garz.ru -all

Record Breakdown

Prefix	Mechanism	Value	Description
+	`v`	spf1	The SPF record version.
+	`ip4`	178.216.102.177	Match if the IP is in the given IPv4 range.
+	`a`	mail.master-garz.ru	Match if the sender's IP is one of the domain's A 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 (1) 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

No common third-party DKIM selectors found. Custom selectors may be configured.

🔍 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 master-garz.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 Server	Status	Latency	Banner / Handshake Response
mail.master-garz.ru	Success	915ms	`220-********************`

Server IP Blacklist Check (178.216.102.177)

Spamhaus ZEN: Clean

SpamCop: Clean

Barracuda: Listed

GBUdb Truncate: Clean

DroneBL: Clean

SSL/TLS Certificate Details for master-garz.ru

Issuer: YR2
Expires In: 33 Days
Chain Status: Valid Chain

🔒 SSL / TLS Protocol Support

Good

TLS protocol versions

TLS 1.3	Disabled
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: master-garz.ru
SANs: DNS:master-garz.ru, DNS:www.master-garz.ru
Organization: N/A
Validity: Aug 27, 2026 to Nov 25, 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 master-garz.ru

Website Identity

Title	Сухие строительные смеси Мастер Гарц
Meta Description	N/A

Hosting & Server Network

IP Address	178.216.102.177
HTTP Status	200 i
Hosting Provider	K2 Integration JSC i
Web Server	nginx i
Control Panel	Not Detected i

Technology Profile

Nginx
jQuery
Google Fonts
Recaptcha

HTTP Security Headers

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

IP Details & Geolocation

IP Address	178.216.102.177
Reverse DNS (PTR)	`c2-178-216-102-177.elastic.k2.cloud`
Country	Ukraine (UA)
Region	Donetsk
City	Horlivka
ZIP Code	N/A
ASN	51219
Organization / ISP	K2 Integration JSC

Understanding Diagnostic Terms for master-garz.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.