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cash4books.net

HTTPS HTTP/2 HSTS Gzip Next.js Crawled in 21,898ms · June 27, 2026 14:00 UTC

cash4books.net Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of cash4books.net on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 11982ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 245 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 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 cash4books.net. The detected stack includes Next.js chunks, React, and Google Tag Manager. The site uses Next.js as its primary framework (version chunks). The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, cash4books.net receives an overall trust score of 62/100, classified as "Likely Safe".
62
/ 100
Trust Score
55
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time11982ms
ProtocolHTTP/2
Page Size245 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Server
Total Requests246
3rd Party Domains14
Redirect2 hop(s)
Detected Technologies (3)
🔧 Next.js ⚛️ React 🏷️ Google Tag Manager
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
Issuer
Issuer Full
Subject
Type
TLS Version
Cipher Suite
Algorithm
Issued
Expires— (? days)
SANs

cash4books.net Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, cash4books.net receives a trust score of 62/100, 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 and HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks. 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 cash4books.net 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.
62
/ 100
Likely Safe
Trust Signals
Valid HTTPS
HSTS enabled
⚠️ DNSSEC not enabled
⚠️ 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

cash4books.net Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned cash4books.net 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. Framework: Next.js (version chunks) — provides the application framework and routing for cash4books.net. UI Library: React — handles the user interface rendering and component management for cash4books.net. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for cash4books.net. We also extracted the following tracking identifiers: Google Tag Manager container GTM-NSHLNRL9. These IDs can be used to identify other websites operated by the same organization.
Framework
🔧 Next.js chunks(100%)
UI Library
⚛️ React(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Tracking IDs
gtm_idGTM-NSHLNRL9

cash4books.net Performance, Speed & Core Web Vitals

🤖 AI Summary
cash4books.net delivers its homepage in 11982ms (server response time), which is considered slow by industry standards. The total page weight is 245 KB, and we detected 246 resource requests loading assets from 14 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 2 CSS files and 0 out of 29 JavaScript files are minified. Minifying the remaining 31 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 cash4books.net produces approximately 0.12g 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 245 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for cash4books.net. 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 view0.12g
RatingA
Page Weight & Optimization
HTML Size245 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests246
3rd Party Domains14
CSS Minified0/2
JS Minified0/29

cash4books.net DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
cash4books.net resolves to the IPv4 address 3.33.251.168, 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 2 A record(s) configured. The domain name system is managed by 2 name servers: ns59.domaincontrol.com and ns60.domaincontrol.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 cash4books.net. 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 cash4books.net: www.cash4books.net. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
3.33.251.168
15.197.225.128
NS
ns59.domaincontrol.com
ns60.domaincontrol.com
Email & Authentication
SPF
DMARC p=—
DKIM
DNSSEC
MX Provider
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (1 found)
www.cash4books.net

cash4books.net Page Content, Images & Accessibility

🤖 AI Summary
The homepage of cash4books.net contains 626 words of visible text content. This is a moderate amount of content. The page is structured with 9 H2 headings, 11 H3 headings, 0 H4 headings. The page includes 137 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 39 internal links pointing to other pages on the same domain and 24 external links pointing to third-party websites. There are 29 external JavaScript files, 2 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: Schema.org structured data (AggregateRating, BreadcrumbList, ImageObject, ListItem, MobileApplication, Offer, Organization, WebPage, and WebSite). Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on cash4books.net: 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 2 platforms: Facebook (@WobGroup) and Twitter (@worldofbookshq). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
626
Words
137
Images
100%
Alt Text Score
245
Page Size (KB)
Content Structure
H1Sell Textbooks & Books for Cash!
H2 Tags9
H3 Tags11
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links39
External Links24
Assets & Features
JavaScript Files29
JS Minified0/29
CSS Files2
CSS Minified0/2
Iframes0
Images137
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
Schema.org Types
AggregateRatingBreadcrumbListImageObjectListItemMobileApplicationOfferOrganizationWebPageWebSite
Payment Methods Detected
💳 Discover
Social Media Presence
Facebook: @WobGroupTwitter: @worldofbookshq

cash4books.net SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for cash4books.net is well-optimized at 60 characters: "World of Books US | Sell Textbooks, Books, DVDs, CDs & Games". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 115 characters (well-optimized): "Sell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.". 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://sell.worldofbooks.com/en-us, preventing duplicate content issues, the page language is declared as en-gb, and a favicon is configured. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("World of Books US | Sell Textbooks, Books, DVDs, CDs & Games..."), 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. 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. The site implements Schema.org structured data with the following types: AggregateRating, BreadcrumbList, ImageObject, ListItem, MobileApplication, Offer, Organization, WebPage, 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
World of Books US | Sell Textbooks, Books, DVDs, CDs & Games
https://cash4books.net
Sell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.
Meta Tags
TitleWorld of Books US | Sell Textbooks, Books, DVDs, CDs & Games...
Title Length60 chars
Meta Desc Length115 chars
H1Sell Textbooks & Books for Cash!
Languageen-GB
Canonicalhttps://sell.worldofbooks.com/en-us
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema TypesAggregateRating, BreadcrumbList, ImageObject, ListItem, MobileApplication, Offer, Organization, WebPage, WebSite
OG Type
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
cash4books.net
World of Books US | Sell Textbooks, Books, DVDs, CDs & Games
Sell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.