104korea.jp Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of 104korea.jp on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 5383ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 79 KB.
Warning: The website does not have a valid SSL certificate. Visitors may see security warnings in their browser, and data transmitted to and from this website is not encrypted.
The security headers analysis reveals a score of 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy, which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks.
Our technology detection scan identified 3 technologies across 3 categories powering 104korea.jp. The detected stack includes WordPress, Angular, and Google Analytics 4. The site uses Angular as its primary framework.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, 104korea.jp receives an overall trust score of 61/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time5383ms
ProtocolHTTP/2
Page Size79 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerLiteSpeed
Total Requests121
3rd Party Domains2
RedirectNone
Detected Technologies (3)
• WordPress
🔧 Angular
📊 Google Analytics 4
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=R12
SubjectcommonName=webmail.104korea.jp
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
104korea.jp Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, 104korea.jp receives a trust score of 61/100, which places it in the "Likely Safe" category. This score is calculated by evaluating multiple factors including SSL certificate validity, domain registration history, email authentication protocols, security header configuration, and blacklist status across major threat intelligence databases.
The analysis identified several positive trust signals: a valid HTTPS connection protecting data in transit, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a none policy, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification.
Areas of concern include: the absence of a Content-Security-Policy header, which leaves the site more vulnerable to cross-site scripting (XSS) attacks, no X-Frame-Options header, which could allow the site to be embedded in malicious iframes (clickjacking), missing Referrer-Policy, potentially leaking URL information to third parties, the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity, and DNSSEC is not enabled, leaving DNS queries vulnerable to spoofing attacks. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved.
We checked 104korea.jp against 8 major blacklist databases including Google Safe Browsing, Phishtank, Urlhaus, Openphish, Dnsfilter, Spamhaus Dbl, Surbl, and Virustotal. The domain passed all 8 checks with a clean status, meaning it has not been flagged for phishing, malware distribution, spam, or other malicious activities by any of the tested threat intelligence providers.
Trust Signals
✅ Valid HTTPS
✅ SPF configured
✅ DMARC configured (p=none)
✅ DKIM configured
⚠️ DNSSEC not enabled
✅ Sitemap.xml found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
⚠️ Missing Referrer-Policy
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
104korea.jp Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned 104korea.jp and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CMS: WordPress — manages the content and page structure for 104korea.jp.
Framework: Angular — provides the application framework and routing for 104korea.jp.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for 104korea.jp.
CMS
Framework
Analytics
📊 Google Analytics 4(95%)
104korea.jp Performance, Speed & Core Web Vitals
🤖 AI Summary
104korea.jp delivers its homepage in 5383ms (server response time), which is considered slow by industry standards. The total page weight is 79 KB, and we detected 121 resource requests loading assets from 2 third-party domains. A high number of third-party domains can significantly impact page load time due to additional DNS lookups and TLS handshakes required for each domain.
The website uses Gzip compression for text-based assets, achieving an estimated 60.0% reduction in transfer size. This reduces bandwidth usage and improves page load times, especially for visitors on slower connections.
Asset minification status: 0 out of 13 CSS files and 8 out of 12 JavaScript files are minified. Minifying the remaining 17 unminified file(s) could further reduce page weight by 10-30% for those assets. Minification is a best practice that reduces download sizes without affecting functionality.
From an environmental perspective, each page view of 104korea.jp produces approximately 0.04g of CO₂, earning a carbon rating of A. This places the website among the cleanest on the web, demonstrating efficient use of server resources and optimized content delivery. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 79 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 104korea.jp. This typically means the site doesn't have enough real-world Chrome user traffic to generate statistically significant field data, or the domain is not included in the CrUX dataset. Core Web Vitals (LCP, INP, CLS) are important Google ranking factors that measure real user experience.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.04g
RatingA
Page Weight & Optimization
HTML Size79 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests121
3rd Party Domains2
CSS Minified0/13
JS Minified8/12
104korea.jp DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
104korea.jp resolves to the IPv4 address 183.90.183.141, but does not support IPv6. IPv6 adoption is increasingly important as IPv4 address space becomes exhausted, and some ISPs and regions are transitioning to IPv6-only connectivity. The domain has 1 A record(s) configured.
The domain name system is managed by 2 name servers: ns1.rakko.zone and ns2.rakko.zone. Having 2 name servers provides good redundancy — if one fails, the others can continue serving DNS queries. The choice of name servers often indicates the DNS hosting provider or CDN service being used.
Email for 104korea.jp is handled by 104korea.jp with 1 MX records configured: 104korea.jp. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server.
SPF (Sender Policy Framework) is configured, which specifies which mail servers are authorized to send email on behalf of this domain. This helps prevent email spoofing and improves email deliverability. DMARC (Domain-based Message Authentication, Reporting and Conformance) is configured with a none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. DKIM (DomainKeys Identified Mail) is configured, adding a cryptographic signature to outgoing emails that receiving servers can verify to confirm the email hasn't been tampered with in transit.
DNSSEC is not enabled for 104korea.jp. While not critical for most websites, DNSSEC adds an important security layer by ensuring DNS responses haven't been tampered with during transit. Enabling DNSSEC is recommended for domains handling sensitive data or financial transactions.
Our subdomain enumeration scan discovered 25 active subdomains for 104korea.jp: admin.104korea.jp, api.104korea.jp, app.104korea.jp, apps.104korea.jp, blog.104korea.jp, cdn.104korea.jp, community.104korea.jp, and dev.104korea.jp. Plus 17 additional subdomains. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
ns1.rakko.zone
ns2.rakko.zone
Email & Authentication
MX Provider104korea.jp
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (25 found)
admin.104korea.jp api.104korea.jp app.104korea.jp apps.104korea.jp blog.104korea.jp cdn.104korea.jp community.104korea.jp dev.104korea.jp developers.104korea.jp docs.104korea.jp ftp.104korea.jp help.104korea.jp m.104korea.jp mail.104korea.jp partners.104korea.jp portal.104korea.jp shop.104korea.jp smtp.104korea.jp staging.104korea.jp static.104korea.jp status.104korea.jp store.104korea.jp support.104korea.jp webmail.104korea.jp www.104korea.jp
104korea.jp Page Content, Images & Accessibility
🤖 AI Summary
The homepage of 104korea.jp contains 71 words of visible text content. This is a relatively short page — adding more descriptive content could improve search engine visibility. The page is structured with 20 H2 headings, 0 H3 headings, 0 H4 headings.
The page includes 43 images. 41 images (95%) are missing alt text attributes, which is a significant concern for both accessibility and SEO. Screen readers rely on alt text to describe images to visually impaired users, and search engines use alt text to understand image content. Only 5% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 25 internal links pointing to other pages on the same domain and 0 external links pointing to third-party websites. There are 12 external JavaScript files, 13 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages), Schema.org structured data (ImageObject, Organization, SearchAction, and WebSite), and RSS feed for content syndication.
Notable missing features: robots.txt. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1—
H2 Tags20
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links25
External Links0
Assets & Features
JavaScript Files12
JS Minified8/12
CSS Files13
CSS Minified0/13
Iframes0
Images43
Missing Alt41
SitemapYes ✓
Robots.txtNo
PWANo
AMPNo
RSS FeedYes ✓
Schema.org Types
ImageObjectOrganizationSearchActionWebSite
104korea.jp SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for 104korea.jp is good at 23 characters: "イチオシコリア | 美しき韓国を味わい尽くす旅". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 13 characters (acceptable): "美しき韓国を味わい尽くす旅". Google typically displays up to 155-160 characters of the meta description in search results. A compelling meta description with a clear call-to-action can significantly improve click-through rates from search results.
The canonical url is correctly set to https://104korea.jp/, preventing duplicate content issues, the page language is declared as ja, the meta robots directive is set to max-image-preview:large, and a favicon is configured.
Open Graph meta tags are configured with 3/4 recommended fields: OG title ("イチオシコリア | 美しき韓国を味わい尽くす旅..."), OG description, OG type (website). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol.
A Twitter Card of type summary is configured, which controls how links appear when shared on Twitter/X. The "summary" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
The site implements Schema.org structured data with the following types: ImageObject, Organization, SearchAction, and WebSite. Structured data helps search engines understand the page content and can enable rich results (featured snippets, knowledge panels, star ratings) in Google search results, which can significantly increase click-through rates.
Google SERP Preview
イチオシコリア | 美しき韓国を味わい尽くす旅
https://104korea.jp
美しき韓国を味わい尽くす旅
Meta Tags
Titleイチオシコリア | 美しき韓国を味わい尽くす旅...
Title Length23 chars
Meta Desc Length13 chars
H1—
Languageja
Canonicalhttps://104korea.jp/
Meta Robotsmax-image-preview:large
Meta Keywordsnot set
Schema.org & Social
Schema TypesImageObject, Organization, SearchAction, WebSite
OG Typewebsite
OG ImageNot set
Twitter Cardsummary
FaviconSet ✓