arduinobook.com

HTTPS HTTP/2 Crawled in 49,194ms · June 27, 2026 22:45 UTC

arduinobook.com Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of arduinobook.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 20807ms. The page is served over HTTP/2 protocol, however no compression (Gzip or Brotli) is enabled, which means the page is transferred at its full uncompressed size. The total page weight is 5 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. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, arduinobook.com receives an overall trust score of 59/100, classified as "Caution Advised".
59
/ 100
Trust Score
0
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time20807ms
ProtocolHTTP/2
Page Size5 KB
CompressionNone
Compression SavingsN/A
CDNNo
ServerCaddy
Total Requests17
3rd Party Domains3
Redirect1 hop(s)
Detected Technologies (0)
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=E7
SubjectcommonName=arduinobook.com
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_128_GCM_SHA256
Algorithm
Issued
Expires— (? days)
SANs

arduinobook.com Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, arduinobook.com receives a trust score of 59/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a none policy. 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 arduinobook.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.
59
/ 100
Caution Advised
Trust Signals
Valid HTTPS
SPF configured
DMARC configured (p=none)
⚠️ 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

arduinobook.com Technology Stack & Detected Technologies

🤖 AI Summary
Our automated technology detection scan was unable to identify specific technologies on arduinobook.com. This could indicate that the site uses server-side rendering without client-side technology fingerprints, employs aggressive code obfuscation, or uses custom-built solutions that don't match known technology signatures.

arduinobook.com Performance, Speed & Core Web Vitals

🤖 AI Summary
arduinobook.com delivers its homepage in 20807ms (server response time), which is considered slow by industry standards. The total page weight is 5 KB, and we detected 17 resource requests loading assets from 3 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. No compression is currently enabled on arduinobook.com. Enabling Brotli or Gzip compression could reduce page size by 60-80% for text-based assets (HTML, CSS, JavaScript), significantly improving load times and reducing bandwidth costs. This is one of the simplest and most impactful performance optimizations available. Asset minification status: 0 out of 1 CSS files and 0 out of 0 JavaScript files are minified. Minifying the remaining 1 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 arduinobook.com produces approximately 0.0g 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 5 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for arduinobook.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 view0.0g
RatingA
Page Weight & Optimization
HTML Size5 KB
CompressionNone
Compression SavingsN/A
CDNNo
Total Requests17
3rd Party Domains3
CSS Minified0/1
JS Minified0/0

arduinobook.com DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
arduinobook.com resolves to the IPv4 address 77.68.121.115, 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 3 name servers: ns1.livedns.co.uk, ns2.livedns.co.uk, and ns3.livedns.co.uk. Having 3 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 arduinobook.com is handled by co.uk with 1 MX records configured: mailserver.livemail.co.uk. 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 none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. 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 arduinobook.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 1 active subdomains for arduinobook.com: www.arduinobook.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
77.68.121.115
NS
ns1.livedns.co.uk
ns2.livedns.co.uk
ns3.livedns.co.uk
MX
mailserver.livemail.co.uk
Email & Authentication
SPF
DMARC p=none
DKIM
DNSSEC
MX Providerco.uk
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (1 found)
www.arduinobook.com

arduinobook.com Page Content, Images & Accessibility

🤖 AI Summary
The homepage of arduinobook.com contains 88 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 1 H2 headings, 0 H3 headings, 0 H4 headings. The page includes 1 image. 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 6 internal links pointing to other pages on the same domain and 5 external links pointing to third-party websites. There are 0 external JavaScript files, 1 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: Schema.org structured data (WebPage) and RSS feed for content syndication. Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 1 platforms: Github (@simonmonk). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
88
Words
1
Images
100%
Alt Text Score
5
Page Size (KB)
Content Structure
H1
H2 Tags1
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links6
External Links5
Assets & Features
JavaScript Files0
JS Minified0/0
CSS Files1
CSS Minified0/1
Iframes0
Images1
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedYes ✓
Schema.org Types
WebPage
Social Media Presence
Github: @simonmonk

arduinobook.com SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for arduinobook.com is good at 68 characters: "SimonMonk.org | A website supporting the books of author Simon Monk.". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 52 characters (acceptable): "A website supporting the books of author Simon Monk.". 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 /prog-arduino-3ed, preventing duplicate content issues and the page language is declared as en. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("SimonMonk.org..."), OG description, 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 is configured, which controls how links appear when shared on Twitter/X. The "summary" 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: WebPage. 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
SimonMonk.org | A website supporting the books of author Simon Monk.
https://arduinobook.com
A website supporting the books of author Simon Monk.
Meta Tags
TitleSimonMonk.org | A website supporting the books of author Sim...
Title Length68 chars
Meta Desc Length52 chars
H1
Languageen
Canonical/prog-arduino-3ed
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema TypesWebPage
OG Typewebsite
OG ImageNot set
Twitter Cardsummary
FaviconNot set