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centrodeopinion.es

HTTPS HTTP/2 Gzip Amazon CloudFront Crawled in 15,472ms · June 27, 2026 14:36 UTC

centrodeopinion.es Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of centrodeopinion.es on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 5112ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 285 KB, and the site is served behind a CDN (Content Delivery Network). 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. Our technology detection scan identified 8 technologies across 8 categories powering centrodeopinion.es. The detected stack includes React, Vite, Google Tag Manager, reCAPTCHA v3, Amazon CloudFront, Adobe Fonts, jQuery, and Font Awesome. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, centrodeopinion.es 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 Time5112ms
ProtocolHTTP/2
Page Size285 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
ServerAmazonS3
Total Requests58
3rd Party Domains8
Redirect1 hop(s)
Detected Technologies (8)
⚛️ React 🔨 Vite 🏷️ Google Tag Manager 🔒 reCAPTCHA v3 ☁️ Amazon CloudFront 🔤 Adobe Fonts 📦 jQuery 🎯 Font Awesome
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
IssuerAmazon
Issuer FullcountryName=US, organizationName=Amazon, commonName=Amazon RSA 2048 M01
SubjectcommonName=opinionoutpost.com
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_128_GCM_SHA256
Algorithm
Issued
Expires— (? days)
SANs

centrodeopinion.es Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, centrodeopinion.es 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 centrodeopinion.es 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
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

centrodeopinion.es Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned centrodeopinion.es and identified 8 distinct technologies across 8 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. UI Library: React — handles the user interface rendering and component management for centrodeopinion.es. Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for centrodeopinion.es. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for centrodeopinion.es. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for centrodeopinion.es. CDN: Amazon CloudFront — accelerates content delivery by caching assets at edge locations worldwide for centrodeopinion.es. Fonts: Adobe Fonts — delivers web fonts for typography for centrodeopinion.es. JavaScript Library: jQuery — provides utility functions and DOM manipulation for centrodeopinion.es. Icon Set: Font Awesome — provides additional functionality for centrodeopinion.es. We also extracted the following tracking identifiers: Google Tag Manager container GTM-MQLV69X. These IDs can be used to identify other websites operated by the same organization.
UI Library
⚛️ React(95%)
Build Tool
🔨 Vite(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Security
🔒 reCAPTCHA v3(95%)
CDN
☁️ Amazon CloudFront(95%)
Fonts
🔤 Adobe Fonts(95%)
JavaScript Library
📦 jQuery(95%)
Icon Set
🎯 Font Awesome(95%)
Tracking IDs
gtm_idGTM-MQLV69X

centrodeopinion.es Performance, Speed & Core Web Vitals

🤖 AI Summary
centrodeopinion.es delivers its homepage in 5112ms (server response time), which is considered slow by industry standards. The total page weight is 285 KB, and we detected 58 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: 4 out of 8 CSS files and 1 out of 10 JavaScript files are minified. Minifying the remaining 13 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. The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors. From an environmental perspective, each page view of centrodeopinion.es produces approximately 0.14g 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 285 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for centrodeopinion.es. 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 view0.14g
RatingA
Page Weight & Optimization
HTML Size285 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests58
3rd Party Domains8
CSS Minified4/8
JS Minified1/10

centrodeopinion.es DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
centrodeopinion.es resolves to the IPv4 address 3.33.246.177, 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 2 A record(s) configured. The domain name system is managed by 4 name servers: ns-1460.awsdns-54.org, ns-1862.awsdns-40.co.uk, ns-425.awsdns-53.com, and ns-530.awsdns-02.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 centrodeopinion.es is handled by dynata.com with 3 MX records configured: inbound01.dynata.com, inbound02.dynata.com, and inbound03.dynata.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 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 centrodeopinion.es. 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 centrodeopinion.es: www.centrodeopinion.es. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
3.33.246.177
15.197.227.85
NS
ns-1460.awsdns-54.org
ns-1862.awsdns-40.co.uk
ns-425.awsdns-53.com
ns-530.awsdns-02.net
MX
inbound01.dynata.com
inbound02.dynata.com
inbound03.dynata.com
Email & Authentication
SPF
DMARC p=none
DKIM
DNSSEC
MX Providerdynata.com
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (1 found)
www.centrodeopinion.es

centrodeopinion.es Page Content, Images & Accessibility

🤖 AI Summary
The homepage of centrodeopinion.es contains 435 words of visible text content. This is a moderate amount of content. The page is structured with 5 H2 headings, 1 H3 headings, 1 H4 headings. The page includes 11 images. 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 19 internal links pointing to other pages on the same domain and 1 external link pointing to third-party websites. There are 10 external JavaScript files, 8 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) and robots.txt (controls search engine crawling behavior). Notable missing features: Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on centrodeopinion.es: Mastercard and Discover. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates. The website has social media presence across 1 platforms: Twitter (@6903BE0B). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
435
Words
11
Images
100%
Alt Text Score
285
Page Size (KB)
Content Structure
H1reciba dinero por su opinión
H2 Tags5
H3 Tags1
H4 Tags1
H5 Tags0
H6 Tags0
Internal Links19
External Links1
Assets & Features
JavaScript Files10
JS Minified1/10
CSS Files8
CSS Minified4/8
Iframes0
Images11
Missing Alt0
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Payment Methods Detected
💳 Mastercard💳 Discover
Social Media Presence
Twitter: @6903BE0B

centrodeopinion.es SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for centrodeopinion.es is well-optimized at 49 characters: "Encuestas Pagadas | Home Page | Centro de Opinión". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 165 characters (slightly long): "Centro de Opinión es un panel de estudios de mercado en el que los miembros juntan puntos por dar sus opiniones en encue...". 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 /, preventing duplicate content issues, the page language is declared as es, and a favicon is configured. No Open Graph tags are configured. When someone shares a link to centrodeopinion.es 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
Encuestas Pagadas | Home Page | Centro de Opinión
https://centrodeopinion.es
Centro de Opinión es un panel de estudios de mercado en el que los miembros juntan puntos por dar sus opiniones en encuestas en línea gratis. Regístrese ahora mismo.
Meta Tags
TitleEncuestas Pagadas | Home Page | Centro de Opinión...
Title Length49 chars
Meta Desc Length165 chars
H1reciba dinero por su opinión
Languagees
Canonical/
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types
OG Type
OG ImageNot set
Twitter Card
FaviconSet ✓