jsltube.com Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of jsltube.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 17870ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 63 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 1 technologies across 1 categories powering jsltube.com. The detected stack includes jQuery.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, jsltube.com receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time17870ms
ProtocolHTTP/2
Page Size63 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Servernginx
Total Requests57
3rd Party Domains10
Redirect1 hop(s)
Detected Technologies (1)
📦 jQuery
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=R13
SubjectcommonName=jsltube.com
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
jsltube.com Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, jsltube.com receives a trust score of 53/100, which places it in the "Caution Advised" 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.
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 jsltube.com 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
⚠️ DNSSEC not enabled
⚠️ 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
jsltube.com Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned jsltube.com and identified 1 distinct technologies across 1 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for jsltube.com.
JavaScript Library
jsltube.com Performance, Speed & Core Web Vitals
🤖 AI Summary
jsltube.com delivers its homepage in 17870ms (server response time), which is considered slow by industry standards. The total page weight is 63 KB, and we detected 57 resource requests loading assets from 10 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 1 CSS files and 1 out of 3 JavaScript files are minified. Minifying the remaining 3 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 jsltube.com produces approximately 0.03g 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 63 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for jsltube.com. 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 view0.03g
RatingA
Page Weight & Optimization
HTML Size63 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests57
3rd Party Domains10
CSS Minified0/1
JS Minified1/3
jsltube.com DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
jsltube.com resolves to the IPv4 address 154.31.172.200, 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: ns11.xincache.com and ns12.xincache.com. 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.
SPF is not configured, meaning any server could potentially send emails pretending to be from this domain. This is a significant email security concern. DMARC is not configured, leaving the domain vulnerable to email spoofing and phishing attacks that impersonate this domain. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic.
DNSSEC is not enabled for jsltube.com. 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 jsltube.com: admin.jsltube.com, api.jsltube.com, app.jsltube.com, apps.jsltube.com, blog.jsltube.com, cdn.jsltube.com, community.jsltube.com, and dev.jsltube.com. 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
ns11.xincache.com
ns12.xincache.com
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (25 found)
admin.jsltube.com api.jsltube.com app.jsltube.com apps.jsltube.com blog.jsltube.com cdn.jsltube.com community.jsltube.com dev.jsltube.com developers.jsltube.com docs.jsltube.com ftp.jsltube.com help.jsltube.com m.jsltube.com mail.jsltube.com partners.jsltube.com portal.jsltube.com shop.jsltube.com smtp.jsltube.com staging.jsltube.com static.jsltube.com status.jsltube.com store.jsltube.com support.jsltube.com webmail.jsltube.com www.jsltube.com
jsltube.com Page Content, Images & Accessibility
🤖 AI Summary
The homepage of jsltube.com contains 145 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 4 H2 headings, 16 H3 headings, 3 H4 headings.
The page includes 8 images. All images have proper alt text attributes ✓, which is excellent for both accessibility (screen readers) and SEO (search engines can understand image content).
The link structure consists of 32 internal links pointing to other pages on the same domain and 10 external links pointing to third-party websites. There are 3 external JavaScript files, 1 CSS stylesheets, and 0 iframes on the page.
Notable missing features: XML Sitemap, robots.txt, and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1安全、高速的解锁全球网络服务
H2 Tags4
H3 Tags16
H4 Tags3
H5 Tags0
H6 Tags0
Internal Links32
External Links10
Assets & Features
JavaScript Files3
JS Minified1/3
CSS Files1
CSS Minified0/1
Iframes0
Images8
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
jsltube.com SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for jsltube.com is well-optimized at 38 characters: "免费加速器官网|免费加速器官方电脑版、IOS版、Android版免费下载网站". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 90 characters (well-optimized): "免费加速器是一款免费的外网npv加速器app,免费加速器可以让您畅快浏览全球各大视频网站,轻松访问外网!一键加速,不限流量!军用级加密保护您的数据!一键加速,支持全端设备账号互通。". 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 page language is declared as zh-cn and a favicon is configured.
No Open Graph tags are configured. When someone shares a link to jsltube.com on social media, the platform will have to guess the title, description, and image — often producing unattractive or inaccurate previews. Adding OG tags is essential for social media marketing.
The meta keywords tag contains 7 terms including 免费, 免费vpn, 免费加速器, 免费vpn官网, and 免费下载. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.
Google SERP Preview
免费加速器官网|免费加速器官方电脑版、IOS版、Android版免费下载网站
https://jsltube.com
免费加速器是一款免费的外网npv加速器app,免费加速器可以让您畅快浏览全球各大视频网站,轻松访问外网!一键加速,不限流量!军用级加密保护您的数据!一键加速,支持全端设备账号互通。
Meta Tags
Title免费加速器官网|免费加速器官方电脑版、IOS版、Android版免费下载网站...
Title Length38 chars
Meta Desc Length90 chars
H1安全、高速的解锁全球网络服务
Languagezh-CN
Canonical—
Meta Robotsnot set
Meta Keywords免费,免费vpn,免费加速器,免费vpn官网,免费下载,免费官网,免费app
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓