alders.nl

HTTPS HTTP/2 HSTS Gzip WordPress Crawled in 58,567ms · June 27, 2026 19:38 UTC

alders.nl Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of alders.nl on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 11430ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 96 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 6 technologies across 6 categories powering alders.nl. The detected stack includes WordPress, Vite, Google Tag Manager, Google Fonts, YouTube Embed, and jQuery. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, alders.nl receives an overall trust score of 67/100, classified as "Likely Safe".
67
/ 100
Trust Score
20
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time11430ms
ProtocolHTTP/2
Page Size96 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerLiteSpeed
Total Requests92
3rd Party Domains8
Redirect1 hop(s)
Detected Technologies (6)
• WordPress 🔨 Vite 🏷️ Google Tag Manager 🔤 Google Fonts 🎬 YouTube Embed 📦 jQuery
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
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=E8
SubjectcommonName=alders.nl
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm
Issued
Expires— (? days)
SANs

alders.nl Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, alders.nl receives a trust score of 67/100, 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 none policy, 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 alders.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.
67
/ 100
Likely Safe
Trust Signals
Valid HTTPS
HSTS enabled
SPF configured
DMARC configured (p=none)
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

alders.nl Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned alders.nl and identified 6 distinct technologies across 6 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. CMS: WordPress — manages the content and page structure for alders.nl. Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for alders.nl. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for alders.nl. Fonts: Google Fonts — delivers web fonts for typography for alders.nl. Video: YouTube Embed — provides video hosting and playback for alders.nl. JavaScript Library: jQuery — provides utility functions and DOM manipulation for alders.nl. We also extracted the following tracking identifiers: Google Tag Manager container GTM-PDTLQS. These IDs can be used to identify other websites operated by the same organization.
CMS
• WordPress(95%)
Build Tool
🔨 Vite(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Fonts
🔤 Google Fonts(95%)
Video
🎬 YouTube Embed(95%)
JavaScript Library
📦 jQuery(95%)
Tracking IDs
gtm_idGTM-PDTLQS

alders.nl Performance, Speed & Core Web Vitals

🤖 AI Summary
alders.nl delivers its homepage in 11430ms (server response time), which is considered slow by industry standards. The total page weight is 96 KB, and we detected 92 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. From an environmental perspective, each page view of alders.nl produces approximately 0.05g 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 96 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for alders.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 view0.05g
RatingA
Page Weight & Optimization
HTML Size96 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests92
3rd Party Domains8
CSS Minified0/0
JS Minified0/0

alders.nl DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
alders.nl resolves to the IPv4 address 193.189.149.71 and also supports IPv6 (2a01:310:8312:1002::71:1), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured. The domain name system is managed by 2 name servers: ns1.transip.net and ns2.transip.eu. 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 alders.nl is handled by realworks.nl with 1 MX records configured: mx1.realworks.nl. 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 (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 alders.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 5 active subdomains for alders.nl: ftp.alders.nl, mail.alders.nl, smtp.alders.nl, webmail.alders.nl, and www.alders.nl. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
193.189.149.71
AAAA
2a01:310:8312:1002::71:1
NS
ns1.transip.net
ns2.transip.eu
MX
mx1.realworks.nl
Email & Authentication
SPF
DMARC p=none
DKIM
DNSSEC
MX Providerrealworks.nl
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportYes ✓
Subdomains (5 found)
ftp.alders.nl mail.alders.nl smtp.alders.nl webmail.alders.nl www.alders.nl

alders.nl Page Content, Images & Accessibility

🤖 AI Summary
The homepage of alders.nl contains 401 words of visible text content. This is a moderate amount of content. The page is structured with 4 H2 headings, 0 H3 headings, 0 H4 headings. The page includes 17 images. 4 images (24%) 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 76% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 42 internal links pointing to other pages on the same domain and 6 external links pointing to third-party websites. There are 0 external JavaScript files, 0 CSS stylesheets, and 2 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 Schema.org structured data (BreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, and WebSite). The website has social media presence across 3 platforms: Facebook (@AldersMakelaars), Instagram (@aldersmakelaars), and Linkedin (@1580782). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
401
Words
17
Images
76%
Alt Text Score
96
Page Size (KB)
Content Structure
H1
H2 Tags4
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links42
External Links6
Assets & Features
JavaScript Files0
JS Minified0/0
CSS Files0
CSS Minified0/0
Iframes2
Images17
Missing Alt4
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Schema.org Types
BreadcrumbListEntryPointImageObjectListItemOrganizationPropertyValueSpecificationReadActionSearchActionWebPageWebSite
Social Media Presence
Facebook: @AldersMakelaarsInstagram: @aldersmakelaarsLinkedin: @1580782

alders.nl SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for alders.nl is well-optimized at 59 characters: "Alders Makelaars | Makelaar Veendam, Hoogezand en Groningen". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 138 characters (well-optimized): "Alders Makelaars is altijd in de buurt! Uw makelaar in Veendam, Hoogezand en Groningen biedt u lokale, betrouwbare en er...". 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://alders.nl/, preventing duplicate content issues, the page language is declared as nl-nl, the meta robots directive is set to index, follow, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Alders Makelaars..."), 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. The site implements Schema.org structured data with the following types: BreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, 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
Alders Makelaars | Makelaar Veendam, Hoogezand en Groningen
https://alders.nl
Alders Makelaars is altijd in de buurt! Uw makelaar in Veendam, Hoogezand en Groningen biedt u lokale, betrouwbare en ervaren begeleiding.
Meta Tags
TitleAlders Makelaars | Makelaar Veendam, Hoogezand en Groningen...
Title Length59 chars
Meta Desc Length138 chars
H1
Languagenl-NL
Canonicalhttps://alders.nl/
Meta Robotsindex, follow
Meta Keywordsnot set
Schema.org & Social
Schema TypesBreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, WebSite
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
alders.nl
Alders Makelaars
Uw makelaar in Veendam en omstreken. Bij Alders Makelaars zijn we altijd in de buurt! Met ons hoofdkantoor in het hart van Veendam en vestigingen in Hoogezand e