kopernio.com Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of kopernio.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 7146ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 31 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 55/100 (moderate). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), and X-Content-Type-Options. However, the site is missing X-Frame-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 kopernio.com. The detected stack includes Google Analytics 4, Google Fonts, and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, kopernio.com receives an overall trust score of 70/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time7146ms
ProtocolHTTP/2
Page Size31 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests58
3rd Party Domains16
RedirectNone
Detected Technologies (3)
📊 Google Analytics 4
🔤 Google Fonts
🎯 Font Awesome
Security Headers
✓
Content-Security-Policy
Set ✓
✓
Strict-Transport-Security (HSTS)
Set ✓
✗
X-Frame-Options
Not set
✓
X-Content-Type-Options
Set ✓
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=kopernio.com
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
kopernio.com Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, kopernio.com receives a trust score of 70/100, 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, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification.
Areas of concern include: 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 kopernio.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
✅ HSTS enabled
✅ SPF configured
✅ DMARC configured (p=quarantine)
✅ DKIM configured
⚠️ DNSSEC not enabled
✅ Sitemap.xml found
✅ Robots.txt found
⚠️ 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
kopernio.com Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned kopernio.com 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.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for kopernio.com.
Fonts: Google Fonts — delivers web fonts for typography for kopernio.com.
Icon Set: Font Awesome — provides additional functionality for kopernio.com.
Analytics
📊 Google Analytics 4(95%)
Fonts
Icon Set
kopernio.com Performance, Speed & Core Web Vitals
🤖 AI Summary
kopernio.com delivers its homepage in 7146ms (server response time), which is considered slow by industry standards. The total page weight is 31 KB, and we detected 58 resource requests loading assets from 16 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 5 CSS files and 0 out of 10 JavaScript files are minified. Minifying the remaining 15 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 kopernio.com produces approximately 0.02g 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 31 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for kopernio.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 view0.02g
RatingA
Page Weight & Optimization
HTML Size31 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests58
3rd Party Domains16
CSS Minified0/5
JS Minified0/10
kopernio.com DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
kopernio.com resolves to the IPv4 address 104.17.97.105 and also supports IPv6 (2606:4700::6811:6169), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: amanda.ns.cloudflare.com and lynn.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.
Email for kopernio.com is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. 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 quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. 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 kopernio.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 kopernio.com: staging.kopernio.com and www.kopernio.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
104.17.97.105
104.17.98.105
NS
amanda.ns.cloudflare.com
lynn.ns.cloudflare.com
MX
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
Email & Authentication
MX ProviderGoogle Workspace
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (2 found)
staging.kopernio.com www.kopernio.com
kopernio.com Page Content, Images & Accessibility
🤖 AI Summary
The homepage of kopernio.com contains 381 words of visible text content. This is a moderate amount of content. The page is structured with 6 H2 headings, 5 H3 headings, 0 H4 headings.
The page includes 19 images. 14 images (74%) 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 26% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 8 internal links pointing to other pages on the same domain and 12 external links pointing to third-party websites. There are 10 external JavaScript files, 5 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) and robots.txt (controls search engine crawling behavior).
Notable missing features: Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
The website has social media presence across 1 platforms: Twitter (@widgets.js). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Access research papers inone click.
H2 Tags6
H3 Tags5
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links8
External Links12
Assets & Features
JavaScript Files10
JS Minified0/10
CSS Files5
CSS Minified0/5
Iframes0
Images19
Missing Alt14
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Social Media Presence
kopernio.com SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for kopernio.com is good at 64 characters: "EndNote Click - Access millions of research papers in one click.". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 78 characters (well-optimized): "Save time accessing full-text PDFs with the free EndNote Click browser plugin.". 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 and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Access millions of research papers in one click...."), OG description, OG image (social sharing thumbnail), 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_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
Google SERP Preview
EndNote Click - Access millions of research papers in one click.
https://kopernio.com
Save time accessing full-text PDFs with the free EndNote Click browser plugin.
Meta Tags
TitleEndNote Click - Access millions of research papers in one cl...
Title Length64 chars
Meta Desc Length78 chars
H1Access research papers inone click.
Languageen
Canonical—
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
kopernio.com
Access millions of research papers in one click.
Save time accessing full-text PDFs with the free EndNote Click browser plugin.