Get a snapshot of startmail.com's online performance, security posture, and technology profile.
startmail.com Website Overview & Technology Report
We performed a comprehensive analysis of startmail.com on 2026-06-29. The website returned an HTTP 200 status code with a server response time of 31073ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 105 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by Let's Encrypt (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_128_GCM_SHA256 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 12 domain(s) (Subject Alternative Names) and expires on 2026-08-29, which is 61 days from now. The security headers analysis reveals a score of 100/100 (excellent). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. All recommended security headers are in place, providing comprehensive protection against common web attacks. Our technology detection scan identified 3 technologies across 3 categories powering startmail.com. The detected stack includes Nuxt.js, React, and Matomo. The site uses Nuxt.js as its primary framework. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, startmail.com receives an overall trust score of 82/100, classified as "Very Likely Safe".
Evaluate trustworthiness based on age, SSL, email authentication, security headers, and blacklist status across 8 threat databases.
startmail.com Trust Score & Safety Analysis
After conducting a thorough safety and legitimacy analysis, startmail.com receives a trust score of 82/100, which places it in the "Very 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, a valid SSL certificate issued by Let's Encrypt with 61 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, and DNSSEC providing authenticated DNS responses. Areas of concern include: 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 startmail.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.
Security Headers
Blacklist Checks 8/8 Clean ✓
Rankings & Estimates
Discover every technology powering this website — from CMS and frameworks to analytics, payments, and marketing tools.
startmail.com Technology Stack & Detected Technologies
Our technology detection engine scanned startmail.com 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: Nuxt.js — provides the application framework and routing for startmail.com. UI Library: React — handles the user interface rendering and component management for startmail.com. Analytics: Matomo — tracks visitor behavior and provides traffic insights for startmail.com.
Response time, compression, CDN usage, Core Web Vitals, and environmental impact metrics for startmail.com.
startmail.com Performance & Web Vitals Report
startmail.com delivers its homepage in 31073ms (server response time), which is considered slow by industry standards. The total page weight is 105 KB, and we detected 162 resource requests loading assets from 15 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 8 CSS files and 0 out of 1 JavaScript files are minified. Minifying the remaining 9 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 startmail.com 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 105 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for startmail.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.
Complete DNS record analysis including email authentication (SPF, DMARC, DKIM), registrar details, and subdomain discovery.
startmail.com DNS Records, Email Authentication & Domain Registration
startmail.com resolves to the IPv4 address 145.131.90.136 and also supports IPv6 (2a02:22a0:bbb6:1d00::1001:443), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured. The domain name system is managed by 4 name servers: dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net, and dns34.cloudns.net. Having 4 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 startmail.com is handled by startmail.com with 4 MX records configured: mx1.startmail.com, mx2.startmail.com, and mx3.startmail.com and 1 more. 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 quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is enabled for startmail.com, 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.
TXT Records / Service Verifications 3
Content structure, media assets, cookie usage, payment methods, and social media presence for startmail.com.
startmail.com Page Content Analysis
The homepage of startmail.com contains 1,514 words of visible text content. This is a substantial amount of content that provides good opportunities for search engine indexing. The page is structured with 18 H2 headings, 18 H3 headings, 0 H4 headings. The page includes 41 images. 41 images (100%) 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 0% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 36 internal links pointing to other pages on the same domain and 29 external links pointing to third-party websites. There are 1 external JavaScript files, 8 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: robots.txt (controls search engine crawling behavior) and Progressive Web App (PWA) manifest (enabling app-like installation). Notable missing features: XML Sitemap and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 5 platforms: Facebook (@MyStartMail), Twitter (@mystartmail), Instagram (@mystartmail), Linkedin (@startmail-bv), and Youtube (@UCwieBspyzvmeEnWtGJN43vg). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Social Media Presence 5 platforms
Evaluate on-page SEO factors including meta tags, Schema.org markup, content metrics, social presence, and environmental impact.
startmail.com SEO Analysis, Meta Tags & Content
The title tag for startmail.com is good at 61 characters: "Private, Secure and Encrypted Email You Can Trust | StartMail". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 128 characters (well-optimized): "Secure your emails with StartMail's encryption and customizable aliases, ensuring ultimate privacy and protection for yo...". 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://www.startmail.com/, preventing duplicate content issues and the page language is declared as en.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("StartMail - Private email you can trust..."), 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.