123werkbladen.nl Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of 123werkbladen.nl on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 18058ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 75 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 20/100 (poor). The following security headers are properly configured: Strict-Transport-Security (HSTS). However, the site is missing Content-Security-Policy, 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 9 technologies across 7 categories powering 123werkbladen.nl. The detected stack includes Bootstrap 4.3.1, Google Tag Manager, Meta Pixel, Google Ads, Cloudflare, StackPath, YouTube Embed, jQuery, and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, 123werkbladen.nl receives an overall trust score of 69/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time18058ms
ProtocolHTTP/2
Page Size75 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerMicrosoft-IIS/10.0
Total Requests274
3rd Party Domains8
Redirect1 hop(s)
Detected Technologies (9)
🎨 Bootstrap
🏷️ Google Tag Manager
📢 Meta Pixel
📢 Google Ads
☁️ Cloudflare
☁️ StackPath
🎬 YouTube Embed
📦 jQuery
🎯 Font Awesome
Security Headers
✗
Content-Security-Policy
Not set
✓
Strict-Transport-Security (HSTS)
Set ✓
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerSectigo Limited
Issuer FullcountryName=GB, organizationName=Sectigo Limited, commonName=Sectigo Public Server Authentication CA DV R36
SubjectcommonName=*.123werkbladen.nl
Type—
TLS VersionTLS 1.2
Cipher SuiteECDHE-RSA-AES256-GCM-SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
123werkbladen.nl Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, 123werkbladen.nl receives a trust score of 69/100, 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 reject policy — the strongest available setting, DKIM (DomainKeys Identified Mail) providing cryptographic email verification, and DNSSEC providing authenticated DNS responses.
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, and the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved.
We checked 123werkbladen.nl 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=reject)
✅ DKIM configured
✅ DNSSEC enabled
✅ Sitemap.xml found
✅ Robots.txt found
⚠️ 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
123werkbladen.nl Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned 123werkbladen.nl and identified 9 distinct technologies across 7 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CSS Framework: Bootstrap (version 4.3.1) — provides the styling and responsive layout system for 123werkbladen.nl.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for 123werkbladen.nl.
Advertising: Meta Pixel and Google Ads — handles advertising pixel tracking and conversion measurement for 123werkbladen.nl.
CDN: Cloudflare and StackPath — accelerates content delivery by caching assets at edge locations worldwide for 123werkbladen.nl.
Video: YouTube Embed — provides video hosting and playback for 123werkbladen.nl.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for 123werkbladen.nl.
Icon Set: Font Awesome — provides additional functionality for 123werkbladen.nl.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-THVGLCN6. These IDs can be used to identify other websites operated by the same organization.
CSS Framework
Tag Manager
🏷️ Google Tag Manager(95%)
Advertising
📢 Meta Pixel(95%)📢 Google Ads(95%)
CDN
☁️ Cloudflare(95%)☁️ StackPath(95%)
Video
JavaScript Library
Icon Set
Tracking IDs
123werkbladen.nl Performance, Speed & Core Web Vitals
🤖 AI Summary
123werkbladen.nl delivers its homepage in 18058ms (server response time), which is considered slow by industry standards. The total page weight is 75 KB, and we detected 274 resource requests loading assets from 8 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: 5 out of 5 CSS files and 6 out of 8 JavaScript files are minified. Minifying the remaining 2 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 123werkbladen.nl 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 75 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 123werkbladen.nl. 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 Size75 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests274
3rd Party Domains8
CSS Minified5/5
JS Minified6/8
123werkbladen.nl DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
123werkbladen.nl resolves to the IPv4 address 77.61.145.196, 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: ns0.transip.net, ns1.transip.nl, and ns2.transip.eu. 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 123werkbladen.nl is handled by Microsoft 365 with 1 MX records configured: 123werkbladen-nl.mail.protection.outlook.com. 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 reject policy — the strongest setting, instructing receiving servers to reject unauthorized emails entirely. 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 enabled for 123werkbladen.nl, providing an additional layer of security by cryptographically signing DNS records. This prevents DNS cache poisoning and man-in-the-middle attacks that could redirect visitors to malicious websites.
Our subdomain enumeration scan discovered 2 active subdomains for 123werkbladen.nl: admin.123werkbladen.nl and www.123werkbladen.nl. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
ns0.transip.net
ns1.transip.nl
ns2.transip.eu
MX
123werkbladen-nl.mail.protection.outlook.com
Email & Authentication
MX ProviderMicrosoft 365
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (2 found)
admin.123werkbladen.nl www.123werkbladen.nl
123werkbladen.nl Page Content, Images & Accessibility
🤖 AI Summary
The homepage of 123werkbladen.nl contains 906 words of visible text content. This is a moderate amount of content. The page is structured with 11 H2 headings, 0 H3 headings, 0 H4 headings, 35 H5, and 3 H6 headings.
The page includes 84 images. 1 images (1%) 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 99% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 168 internal links pointing to other pages on the same domain and 3 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 8 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), robots.txt (controls search engine crawling behavior), and Progressive Web App (PWA) manifest (enabling app-like installation).
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 3 platforms: Instagram (@123werkbladen), Pinterest (@123Werkbladen), and Github (@bluesmoon). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Vind uw perfecte werkblad
H2 Tags11
H3 Tags0
H4 Tags0
H5 Tags35
H6 Tags3
Internal Links168
External Links3
Assets & Features
JavaScript Files8
JS Minified6/8
CSS Files5
CSS Minified5/5
Iframes0
Images84
Missing Alt1
SitemapYes ✓
Robots.txtYes ✓
PWAYes ✓
AMPNo
RSS FeedNo
Social Media Presence
Instagram: @123werkbladenPinterest: @123WerkbladenGithub: @bluesmoon
123werkbladen.nl SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for 123werkbladen.nl is well-optimized at 40 characters: "Welkom bij 123Werkbladen - 123Werkbladen". 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 123werkbladen.nl. 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 page language is declared as nl-nl and a favicon is configured.
No Open Graph tags are configured. When someone shares a link to 123werkbladen.nl on social media, the platform will have to guess the title, description, and image — often producing unattractive or inaccurate previews. Adding OG tags is essential for social media marketing.
Google SERP Preview
Welkom bij 123Werkbladen - 123Werkbladen
https://123werkbladen.nl
Meta Tags
TitleWelkom bij 123Werkbladen - 123Werkbladen...
Title Length40 chars
Meta Desc Length0 chars
H1Vind uw perfecte werkblad
Languagenl-NL
Canonical—
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓