cenlib.tau.ac.il Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of cenlib.tau.ac.il on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 1858ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 85 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 45/100 (below average). The following security headers are properly configured: X-Frame-Options, X-Content-Type-Options, and Permissions-Policy. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), and Referrer-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 5 technologies across 5 categories powering cenlib.tau.ac.il. The detected stack includes Drupal, Google Analytics 4, Google Tag Manager, Meta Pixel, and jQuery.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, cenlib.tau.ac.il receives an overall trust score of 58/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time1858ms
ProtocolHTTP/2
Page Size85 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Servervolt-adc
Total Requests231
3rd Party Domains37
RedirectNone
Detected Technologies (5)
• Drupal
📊 Google Analytics 4
🏷️ Google Tag Manager
📢 Meta Pixel
📦 jQuery
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✓
X-Content-Type-Options
Set ✓
✗
Referrer-Policy
Not set
✓
Permissions-Policy
Set ✓
SSL Certificate
IssuerHellenic Academic and Research Institutions CA
Issuer FullcountryName=GR, organizationName=Hellenic Academic and Research Institutions CA, commonName=GEANT TLS RSA 1
SubjectcommonName=*.tau.ac.il
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
cenlib.tau.ac.il Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, cenlib.tau.ac.il receives a trust score of 58/100, 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, 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 cenlib.tau.ac.il 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 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
cenlib.tau.ac.il Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned cenlib.tau.ac.il and identified 5 distinct technologies across 5 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CMS: Drupal — manages the content and page structure for cenlib.tau.ac.il.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for cenlib.tau.ac.il.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for cenlib.tau.ac.il.
Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for cenlib.tau.ac.il.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for cenlib.tau.ac.il.
We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-JB9WS439KH and Google Tag Manager container GTM-M4XK3TD. These IDs can be used to identify other websites operated by the same organization.
CMS
Analytics
📊 Google Analytics 4(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Advertising
JavaScript Library
Tracking IDs
ga4_idG-JB9WS439KH
gtm_idGTM-M4XK3TD
cenlib.tau.ac.il Performance, Speed & Core Web Vitals
🤖 AI Summary
cenlib.tau.ac.il delivers its homepage in 1858ms (server response time), which is considered somewhat slow by industry standards. The total page weight is 85 KB, and we detected 231 resource requests loading assets from 37 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 25 CSS files and 0 out of 27 JavaScript files are minified. Minifying the remaining 52 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 cenlib.tau.ac.il 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 85 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for cenlib.tau.ac.il. 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 Size85 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests231
3rd Party Domains37
CSS Minified0/25
JS Minified0/27
cenlib.tau.ac.il DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
cenlib.tau.ac.il resolves to the IPv4 address 159.60.138.158, 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.
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 cenlib.tau.ac.il. 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 1 active subdomains for cenlib.tau.ac.il: www.cenlib.tau.ac.il. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (1 found)
cenlib.tau.ac.il Page Content, Images & Accessibility
🤖 AI Summary
The homepage of cenlib.tau.ac.il contains 632 words of visible text content. This is a moderate amount of content. The page is structured with 9 H2 headings, 2 H3 headings, 0 H4 headings.
The page includes 25 images. 11 images (44%) 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 56% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 68 internal links pointing to other pages on the same domain and 73 external links pointing to third-party websites. There are 27 external JavaScript files, 25 CSS stylesheets, and 2 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.
We detected the following payment methods accepted on cenlib.tau.ac.il: Discover. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates.
The website has social media presence across 4 platforms: Facebook (@apps), Instagram (@sourasky_central_library), Youtube (@UCElvbRqK92vJrAHWAdb5AIg), and Github (@Sourasky-DHLAB). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1הספרייה המרכזיתע"ש סוראסקי
H2 Tags9
H3 Tags2
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links68
External Links73
Assets & Features
JavaScript Files27
JS Minified0/27
CSS Files25
CSS Minified0/25
Iframes2
Images25
Missing Alt11
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
Payment Methods Detected
Social Media Presence
Facebook: @appsInstagram: @sourasky_central_libraryYoutube: @UCElvbRqK92vJrAHWAdb5AIgGithub: @Sourasky-DHLAB
cenlib.tau.ac.il SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for cenlib.tau.ac.il is well-optimized at 48 characters: "הספרייה המרכזית ע"ש סוראסקי | אוניברסיטת תל אביב". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
No meta description is configured for cenlib.tau.ac.il. This is a critical SEO oversight — without a meta description, Google will auto-generate a snippet from page content, which may not accurately represent the page or entice users to click. Adding a unique, compelling meta description of 120-155 characters is strongly recommended.
The canonical url is correctly set to https://cenlib.tau.ac.il/, preventing duplicate content issues, the page language is declared as he, and a favicon is configured.
Open Graph meta tags are configured with 3/4 recommended fields: OG title ("הספרייה המרכזית - ראשי..."), OG description, OG image (social sharing thumbnail), 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
הספרייה המרכזית ע"ש סוראסקי | אוניברסיטת תל אביב
https://cenlib.tau.ac.il
Meta Tags
Titleהספרייה המרכזית ע"ש סוראסקי | אוניברסיטת תל אביב...
Title Length48 chars
Meta Desc Length0 chars
H1הספרייה המרכזיתע"ש סוראסקי
Languagehe
Canonicalhttps://cenlib.tau.ac.il/
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Type—
OG ImageSet ✓
Twitter Card—
FaviconSet ✓
Open Graph Preview
cenlib.tau.ac.il
הספרייה המרכזית - ראשי
הספרייה המרכזית - ראשי
cenlib.tau.ac.il Related Domains & Cross-References
🤖 AI Summary
Related domain discovery works by finding other websites that share the same IP address, Google Tag Manager container ID, Google Analytics property, or advertising pixel IDs with cenlib.tau.ac.il. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. We extracted the following tracking IDs that can be used for cross-referencing: ga4_id: G-JB9WS439KH, gtm_id: GTM-M4XK3TD.
Tracking IDs for Cross-Referencing
ga4_idG-JB9WS439KH
gtm_idGTM-M4XK3TD
Related Domains
Related domain data requires database (populated after batch crawl)