kupdf.com Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of kupdf.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 16186ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 56 KB, and the site is served behind a CDN (Content Delivery Network).
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 4 technologies across 4 categories powering kupdf.com. The detected stack includes Google Analytics 4, Meta Pixel, jQuery, and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, kupdf.com receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time16186ms
ProtocolHTTP/2
Page Size56 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests240
3rd Party Domains2
Redirect2 hop(s)
Detected Technologies (4)
📊 Google Analytics 4
📢 Meta Pixel
📦 jQuery
🎯 Font Awesome
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
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=kupdf.com
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
kupdf.com Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, kupdf.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 kupdf.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
kupdf.com Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned kupdf.com and identified 4 distinct technologies across 4 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for kupdf.com.
Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for kupdf.com.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for kupdf.com.
Icon Set: Font Awesome — provides additional functionality for kupdf.com.
Analytics
📊 Google Analytics 4(95%)
Advertising
JavaScript Library
Icon Set
kupdf.com Performance, Speed & Core Web Vitals
🤖 AI Summary
kupdf.com delivers its homepage in 16186ms (server response time), which is considered slow by industry standards. The total page weight is 56 KB, and we detected 240 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: 2 out of 5 CSS files and 1 out of 4 JavaScript files are minified. Minifying the remaining 6 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.
The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors.
From an environmental perspective, each page view of kupdf.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 56 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for kupdf.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 Size56 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests240
3rd Party Domains2
CSS Minified2/5
JS Minified1/4
kupdf.com DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
kupdf.com resolves to the IPv4 address 172.67.192.49 and also supports IPv6 (2606:4700:3033::6815:39cb), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: apollo.ns.cloudflare.com and jean.ns.cloudflare.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 kupdf.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 2 active subdomains for kupdf.com: mail.kupdf.com and www.kupdf.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
172.67.192.49
104.21.57.203
AAAA
2606:4700:3033::6815:39cb
NS
apollo.ns.cloudflare.com
jean.ns.cloudflare.com
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (2 found)
mail.kupdf.com www.kupdf.com
kupdf.com Page Content, Images & Accessibility
🤖 AI Summary
The homepage of kupdf.com contains 537 words of visible text content. This is a moderate amount of content. The page is structured with 1 H2 headings, 48 H3 headings, 0 H4 headings, 0 H5, and 48 H6 headings.
The page includes 49 images. 49 images (100%) 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 0% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 167 internal links pointing to other pages on the same domain and 0 external links pointing to third-party websites. The high number of internal links suggests a well-interconnected site structure, which helps search engines discover and crawl all pages efficiently. There are 4 external JavaScript files, 5 CSS stylesheets, and 1 iframes on the page.
The site implements the following web standards and features: Progressive Web App (PWA) manifest (enabling app-like installation).
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—
H2 Tags1
H3 Tags48
H4 Tags0
H5 Tags0
H6 Tags48
Internal Links167
External Links0
Assets & Features
JavaScript Files4
JS Minified1/4
CSS Files5
CSS Minified2/5
Iframes1
Images49
Missing Alt49
SitemapNo
Robots.txtNo
PWAYes ✓
AMPNo
RSS FeedNo
kupdf.com SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for kupdf.com is well-optimized at 57 characters: "KUPDF - Free document sharing platform - Upload and share". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 73 characters (well-optimized): "Open document sharing platform, share your knowledge and live with others". 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 en, the meta robots directive is set to index, follow, and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("KUPDF - Free document sharing platform - Upload and share..."), OG description, OG image (social sharing thumbnail), OG type (article). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol.
Google SERP Preview
KUPDF - Free document sharing platform - Upload and share
https://kupdf.com
Open document sharing platform, share your knowledge and live with others
Meta Tags
TitleKUPDF - Free document sharing platform - Upload and share...
Title Length57 chars
Meta Desc Length73 chars
H1—
Languageen
Canonical—
Meta Robotsindex, follow
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Typearticle
OG ImageSet ✓
Twitter Card—
FaviconSet ✓
Open Graph Preview
kupdf.com
KUPDF - Free document sharing platform - Upload and share
Open document sharing platform, share your knowledge and live with others