a24.biz

HTTPS HTTP/2 Crawled in 32,993ms · June 27, 2026 16:44 UTC

a24.biz Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of a24.biz on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 19870ms. 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 51 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 35/100 (below average). The following security headers are properly configured: Content-Security-Policy and X-Frame-Options. However, the site is missing Strict-Transport-Security (HSTS), 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 1 technologies across 1 categories powering a24.biz. The detected stack includes jQuery. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, a24.biz receives an overall trust score of 58/100, classified as "Caution Advised".
58
/ 100
Trust Score
35
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time19870ms
ProtocolHTTP/2
Page Size51 KB
CompressionNone
Compression SavingsN/A
CDNNo
Serverddos-guard
Total Requests30
3rd Party Domains5
RedirectNone
Detected Technologies (1)
📦 jQuery
Security Headers
Content-Security-Policy
Set ✓
Strict-Transport-Security (HSTS)
Not set
X-Frame-Options
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=R13
SubjectcommonName=a24.biz
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_128_GCM_SHA256
Algorithm
Issued
Expires— (? days)
SANs

a24.biz Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, a24.biz receives a trust score of 58/100, 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. Areas of concern include: 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 a24.biz 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.
58
/ 100
Caution Advised
Trust Signals
Valid HTTPS
⚠️ DNSSEC not enabled
⚠️ 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

a24.biz Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned a24.biz and identified 1 distinct technologies across 1 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. JavaScript Library: jQuery — provides utility functions and DOM manipulation for a24.biz.
JavaScript Library
📦 jQuery(95%)

a24.biz Performance, Speed & Core Web Vitals

🤖 AI Summary
a24.biz delivers its homepage in 19870ms (server response time), which is considered slow by industry standards. The total page weight is 51 KB, and we detected 30 resource requests loading assets from 5 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 a24.biz. 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 1 out of 12 JavaScript files are minified. Minifying the remaining 12 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 a24.biz produces approximately 0.02g 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 51 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for a24.biz. 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 view0.02g
RatingA
Page Weight & Optimization
HTML Size51 KB
CompressionNone
Compression SavingsN/A
CDNNo
Total Requests30
3rd Party Domains5
CSS Minified0/1
JS Minified1/12

a24.biz DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
a24.biz resolves to the IPv4 address 185.129.103.118, 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 4 name servers: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, and d.ns.selectel.ru. 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. 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 a24.biz. 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 3 active subdomains for a24.biz: m.a24.biz, partners.a24.biz, and www.a24.biz. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
185.129.103.118
NS
a.ns.selectel.ru
b.ns.selectel.ru
c.ns.selectel.ru
d.ns.selectel.ru
Email & Authentication
SPF
DMARC p=—
DKIM
DNSSEC
MX Provider
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (3 found)
m.a24.biz partners.a24.biz www.a24.biz

a24.biz Page Content, Images & Accessibility

🤖 AI Summary
The homepage of a24.biz contains 46 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 0 H2 headings, 0 H3 headings, 0 H4 headings. The page includes 5 images. 4 images (80%) 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 20% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 2 internal links pointing to other pages on the same domain and 4 external links pointing to third-party websites. There are 12 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 (Answer, ImageObject, Organization, Person, QAPage, and Question) and Progressive Web App (PWA) manifest (enabling app-like installation). 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: Facebook (@v12.0). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
46
Words
5
Images
20%
Alt Text Score
51
Page Size (KB)
Content Structure
H1Вход в личный кабинет
H2 Tags0
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links2
External Links4
Assets & Features
JavaScript Files12
JS Minified1/12
CSS Files1
CSS Minified0/1
Iframes0
Images5
Missing Alt4
SitemapNo
Robots.txtNo
PWAYes ✓
AMPNo
RSS FeedNo
Schema.org Types
AnswerImageObjectOrganizationPersonQAPageQuestion
Social Media Presence
Facebook: @v12.0

a24.biz SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for a24.biz is good at 29 characters: "Личный кабинет Автор24. Войти". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 82 characters (well-optimized): "Автор24 - информационно-аналитический портал для студентов. Вход в личный кабинет.". 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 page language is declared as ru and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Личный кабинет Автор24. Войти..."), OG description, OG image (social sharing thumbnail), OG type (article). 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: Answer, ImageObject, Organization, Person, QAPage, and Question. 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. The meta keywords tag contains 3 terms including диплом, курсовая, and контрольная на заказ. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.
Google SERP Preview
Личный кабинет Автор24. Войти
https://a24.biz
Автор24 - информационно-аналитический портал для студентов. Вход в личный кабинет.
Meta Tags
TitleЛичный кабинет Автор24. Войти...
Title Length29 chars
Meta Desc Length82 chars
H1Вход в личный кабинет
Languageru
Canonical
Meta Robotsnot set
Meta Keywordsдиплом, курсовая, контрольная на заказ
Schema.org & Social
Schema TypesAnswer, ImageObject, Organization, Person, QAPage, Question
OG Typearticle
OG ImageSet ✓
Twitter Cardsummary
FaviconSet ✓
Open Graph Preview
a24.biz
Личный кабинет Автор24. Войти
Автор24 - информационно-аналитический портал для студентов. Вход в личный кабинет.