# BeaverCheck Audit Report — https://excelsior.com.mx **Date:** April 15, 2026 **URL:** https://excelsior.com.mx **Overall Grade:** C (71/100) **Report:** https://beavercheck.com/results/658ff990-bc01-4d04-b34b-4d8f4bb5eaba ## Top Findings 1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers 2. **[CRITICAL]** HSTS header is missing — Security > Security Headers 3. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy 4. **[CRITICAL]** 19 image(s) missing alt attribute — Accessibility > Alt Text Quality 5. **[CRITICAL]** 20 control(s) without accessible label — Accessibility > Form Accessibility --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 48 | | Accessibility | 91 | | Best Practices | 100 | | SEO | 92 | --- ## Security ### Security Headers (F — 10/100) *2 of 10 headers properly configured* - **[CRITICAL]** HSTS header is missing — Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year. - **[WARNING]** X-Content-Type-Options header is missing — This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'. - **[WARNING]** X-Frame-Options header is missing — This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN. - **[WARNING]** Referrer-Policy header is missing — Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter. - **[WARNING]** Permissions-Policy header is missing — Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features. - **[CRITICAL]** Content-Security-Policy header is missing — CSP is the most important header for preventing XSS attacks. See the CSP section for detailed analysis. - **[WARNING]** Cross-Origin-Opener-Policy header is missing — COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'. - **[WARNING]** Cross-Origin-Embedder-Policy header is missing — COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers. - **[PASS]** X-Powered-By header is not present - **[PASS]** Server header is present without version info ### Content Security Policy (F — 0/100) *No enforcing CSP policy found* - **[CRITICAL]** No Content-Security-Policy header found — CSP is the most effective defense against XSS attacks. Add a Content-Security-Policy header to restrict resource loading. ### TLS & Certificates (A+ — 100/100) *TLS 1.2, 7 checks passed* - **[PASS]** TLS 1.2 is used - **[INFO]** TLS 1.3 is not negotiated — TLS 1.3 offers improved performance and security. Consider enabling it. - **[PASS]** Strong cipher suite is used - **[INFO]** HTTP/2 is not negotiated — HTTP/2 provides multiplexing and header compression for better performance. - **[PASS]** Certificate is valid (expires in 47 days) - **[PASS]** Certificate chain has 3 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 6 domain(s) - **[PASS]** Certificate is issued by a trusted CA ### Cookie Security (A+ — 95/100) *1 cookies analyzed, 2 checks passed* - **[PASS]** Cookie 'Path' has the Secure flag - **[PASS]** Cookie 'Path' has the HttpOnly flag - **[WARNING]** Cookie 'Path' has no SameSite attribute — Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict. --- ## Advanced Security ### Subresource Integrity (F — 20/100) *0 of 20 external resources have SRI* - **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from sdk.mrf.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from sdk.mrf.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from sb.scorecardresearch.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from api.retargetly.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from sb.scorecardresearch.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from securepubads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.excelsior.com.mx lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from securepubads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from fundingchoicesmessages.google.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from fundingchoicesmessages.google.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. ### JS Library Vulnerabilities (A+ — 100/100) *No known vulnerabilities* - **[PASS]** No known JavaScript library vulnerabilities detected ### Information Leakage (A+ — 100/100) *No exposures* - **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt. - **[PASS]** No sensitive files exposed ### Email Security (A — 85/100) *DMARC: quarantine* - **[PASS]** DMARC policy is quarantine — good protection ### Permissions-Policy (D — 40/100) *No header set* - **[WARNING]** No Permissions-Policy header — Consider adding a Permissions-Policy header to restrict browser feature access from embedded content. ### CORS Configuration (B — 80/100) *No CORS headers* - **[PASS]** No CORS headers present — secure default --- ## Performance ### Page Weight Budget (F — 35/100) *2.7 MB transferred, 90 requests* - **[WARNING]** Page weighs 6.3 MB (2.7 MB transferred) - **[WARNING]** JavaScript is 1.2 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[WARNING]** Images are 1.0 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size. - **[INFO]** Fonts are 423 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[INFO]** 90 HTTP requests - **[INFO]** Estimated 0.57 g CO2 per page load ### Third-Party Impact (D — 50/100) *100% third-party, 0 ms blocking* - **[WARNING]** Third-party code accounts for 100% of page weight (2.7 MiB of 2.7 MiB) - **[PASS]** Third-party blocking time is low (0 ms) ### Text Compression (A+ — 100/100) *All text resources are compressed* - **[PASS]** All text resources are compressed ### Image Optimization (B — 70/100) *35 images, 0 KB saveable* - **[WARNING]** https://imagenes.excelsior.com.mx/uploads/2026/01/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (D — 40/100) *3483ms total JS execution* - **[WARNING]** https://www.excelsior.com.mx/: 1039ms CPU time - **[WARNING]** Unattributable: 397ms CPU time - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-1T5E...: 352ms CPU time - **[WARNING]** https://securepubads.g.doubleclick.net/pagead/mana...: 337ms CPU time - **[WARNING]** https://fundingchoicesmessages.google.com/f/AGSKWx...: 280ms CPU time - **[WARNING]** Third-party scripts: 3483ms (100% of total) ### Font Loading (A+ — 100/100) *8 fonts (423 KB)* - **[INFO]** 8 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (F — 0/100) *18 scripts, 633 KB unused* - **[WARNING]** https://www.excelsior.com.mx/assets/global.bundle....: 162 KB unused (72%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.excelsior.com.mx/assets/global.bundle....: unminified — 96 KB could be saved - **[WARNING]** https://securepubads.g.doubleclick.net/pagead/mana...: 129 KB unused (69%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.excelsior.com.mx/assets/home.bundle.js: 120 KB unused (84%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.excelsior.com.mx/assets/home.bundle.js: unminified — 76 KB could be saved - **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-MHV...: 62 KB unused (46%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-1T5E...: 61 KB unused (35%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 633 KB ### Resource Caching (A+ — 100/100) *All resources properly cached* - **[PASS]** No caching issues found ### Critical Rendering Path (A+ — 100/100) *No render-blocking resources* - **[PASS]** No render-blocking resources detected ### Resource Hints (A+ — 100/100) *2 hints, 0 missing preconnects* - **[PASS]** Page uses 2 resource hint(s) ### Page Weight Inventory (F — 30/100) *90 resources · 2.7 MB · 633 KB savings available* - **[WARNING]** Page weight 1.7 MB over 1MB target - **[INFO]** ~633 KB of savings available - **[WARNING]** 89 third-party resources (100% of weight) - **[INFO]** 2 resources over 200KB ### Render-Blocking Resources (A+ — 100/100) *No render-blocking resources detected* - **[PASS]** No render-blocking resources detected in ### Third-Party Resources (A+ — 100/100) *No third-party resources detected* --- ## Content Quality ### Links (F — 45/100) *200 links checked, 189 healthy, 11 broken* - **[CRITICAL]** 189 of 200 links are healthy - **[WARNING]** Broken link: https://fonts.googleapis.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://fonts.gstatic.com — Found in . Returns HTTP 404. - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/espectaculos — Found in . Get "https://www.excelsior.com.mx/espectaculos": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/temas/liga-mx — Found in . Get "https://www.excelsior.com.mx/temas/liga-mx": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/calendario-liga-mx-clausura-... — Found in . Get "https://www.excelsior.com.mx/calendario-liga-mx-clausura-2026": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/temas/futbol-internacional — Found in . Get "https://www.excelsior.com.mx/temas/futbol-internacional": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/temas/formula-1 — Found in . Get "https://www.excelsior.com.mx/temas/formula-1": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/tabla-posiciones-ligamx — Found in . Get "https://www.excelsior.com.mx/tabla-posiciones-ligamx": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/salud — Found in . Get "https://www.excelsior.com.mx/salud": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/recetas — Found in . Get "https://www.excelsior.com.mx/recetas": context deadline exceeded - **[CRITICAL]** Broken link: https://www.excelsior.com.mx/temas/horoscopos — Found in . Get "https://www.excelsior.com.mx/temas/horoscopos": context deadline exceeded ### Mixed Content (A+ — 100/100) *No mixed content detected — all resources use HTTPS.* - **[PASS]** No mixed content detected — all resources use HTTPS ### Open Graph (A — 90/100) *Open Graph tags are well configured for social sharing.* - **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it. ### Structured Data (C — 75/100) *3 JSON-LD block(s) found — some improvements recommended.* - **[CRITICAL]** Malformed JSON-LD block #3 — JSON parse error: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https:\\/\\/schema.o\n\t^...............................\n" - **[PASS]** Custom type "NewsMediaOrganization" — unable to validate specific properties - **[PASS]** 3 JSON-LD blocks found --- ## Infrastructure ### DNS Records (A+ — 95/100) *1 A records, 28 ms lookup* - **[PASS]** Resolves to 1 IPv4 address(es) - **[INFO]** Single A record — no DNS redundancy — Multiple A records provide failover if one server goes down. - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 4 nameserver(s) configured - **[PASS]** 5 mail exchanger(s) configured - **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update. - **[PASS]** SPF record present in TXT - **[PASS]** DNS resolution time: 28 ms ### Redirect Chain (A — 90/100) *1 redirect(s), 718 ms total* - **[PASS]** Single redirect - **[INFO]** WWW normalization redirect - **[INFO]** Redirect overhead: 718 ms total ### IPv6 Readiness (C — 60/100) *No IPv6 support* - **[INFO]** No IPv6 (AAAA) records found — IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity. ### Crawlability (A+ — 100/100) *robots.txt present, sitemap with 194 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 194 entries - **[PASS]** Sitemap index with 194 child sitemaps - **[PASS]** robots.txt references sitemap ### URL Variants (B — 75/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[CRITICAL]** Both www and non-www versions serve content - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A+ — 100/100) *excelsior.com.mx — via AKKY ONLINE SOLUTIONS, S.A. DE C.V., 23 years old, hosted on AWS* - **[PASS]** Domain registered until Aug 12, 2027 (1 years, 4 months remaining) - **[PASS]** Registrar: AKKY ONLINE SOLUTIONS, S.A. DE C.V. - **[WARNING]** Registrar lock is NOT enabled — The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers. - **[PASS]** Hosting: AWS --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (A — 85/100) *No consent signals detected* - **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required. - **[PASS]** Terms of service link found - **[INFO]** No cookie consent banner detected - **[PASS]** 1 cookie(s) set on initial load (functional) - **[INFO]** This is an automated check, not legal advice — BeaverCheck detects technical indicators of consent management. This does not constitute a legal compliance assessment. Consult a privacy professional for GDPR/CCPA compliance. ### Language & i18n (A — 90/100) *Lang attribute present* - **[PASS]** attribute is present - **[PASS]** value is valid - **[INFO]** No Content-Language HTTP header - **[INFO]** Language signals are inconsistent — The attribute and Content-Language header should agree. ### Readability & Typography (A+ — 100/100) *Font sizes and tap targets checked* ### Viewport Configuration (A+ — 100/100) *Viewport properly configured* - **[PASS]** Viewport meta tag is present - **[PASS]** width=device-width is set - **[PASS]** User zooming is allowed ### Third-Party Trackers (D — 40/100) *9 trackers detected* - **[INFO]** 9 third-party trackers detected — Found 6 analytics, 2 advertising, 0 marketing, 1 tag manager trackers. - **[WARNING]** 2 advertising/retargeting trackers detected — Advertising trackers collect user data for ad targeting. Under GDPR, these typically require explicit consent. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 9 trackers but no cookie policy was detected. GDPR requires disclosure when using tracking cookies. - **[WARNING]** Trackers detected but no privacy policy found — Most data protection regulations require a privacy policy when collecting user data via trackers. ### Cookie & Tracker Inventory (A+ — 100/100) *1 cookies · 9 trackers · 0 pre-consent* - **[INFO]** 1 cookie(s) could not be classified - **[INFO]** 9 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (F — 0/100) *0 of 7 expected legal pages detected* - **[WARNING]** Privacy Policy not detected — No link matching common Privacy Policy URL patterns or link text was found. Most websites are expected to have a Privacy Policy, especially those collecting user data. - **[WARNING]** Terms of Service not detected — No link matching common Terms of Service URL patterns or link text was found. Most websites are expected to have a Terms of Service, especially those collecting user data. - **[INFO]** Cookie Policy not detected — No link matching common Cookie Policy URL patterns or link text was found. Most websites are expected to have a Cookie Policy, especially those collecting user data. - **[INFO]** Accessibility Statement not detected — No link matching common Accessibility Statement URL patterns or link text was found. Most websites are expected to have a Accessibility Statement, especially those collecting user data. - **[INFO]** DMCA / Copyright Notice not detected — No link matching common DMCA / Copyright Notice URL patterns or link text was found. Most websites are expected to have a DMCA / Copyright Notice, especially those collecting user data. - **[INFO]** Refund / Returns Policy not detected — No link matching common Refund / Returns Policy URL patterns or link text was found. Most websites are expected to have a Refund / Returns Policy, especially those collecting user data. - **[INFO]** Acceptable Use Policy not detected — No link matching common Acceptable Use Policy URL patterns or link text was found. Most websites are expected to have a Acceptable Use Policy, especially those collecting user data. ### Copyright Notice (A+ — 100/100) *© 2026 Todos los derechos reservados* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Todos los derechos reservados - **[PASS]** Copyright holder: Todos los derechos reservados ### Regulatory Indicators *1 regulatory indicator(s) detected* - **[INFO]** This is a technical scan, not a legal assessment — BeaverCheck detects technical indicators that may suggest regulatory relevance. This is not a compliance audit and should not be relied upon for legal decisions. Consult qualified legal counsel for compliance assessments. - **[INFO]** HIPAA indicators detected (weak confidence) — Indicators suggesting HIPAA may be relevant: Text mentions: phi. Health Insurance Portability and Accountability Act — protects sensitive patient health information. ### Third-Party Data Sharing *2 third-party service(s) detected* - **[INFO]** Data inventory for transparency purposes — This inventory identifies third-party services that receive data from your site visitors. Under regulations like GDPR (Article 30), maintaining records of data processing activities is commonly considered a best practice. This automated scan provides a starting point — it may not capture all data flows. - **[INFO]** 2 third-party services across 2 categories — 2 third-party services detected across 2 categories: Analytics (1), Tag Management (1). Each of these services receives some user data from your site visitors. - **[INFO]** Google Analytics (Analytics) — Detected via script URL. Typically collects: Page views, User behavior, Demographics, Device info, IP address. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available. - **[INFO]** Google Tag Manager (Tag Management) — Detected via script URL. Typically collects: Orchestrates other tracking scripts, Page views. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available. ### Compliance Badges (C — 55/100) *0 compliance badge(s) detected* - **[INFO]** No compliance badges detected — No recognized compliance certification badges or seals were found. This is common — many sites do not display compliance badges. --- ## Availability ### CDN & Delivery (D — 50/100) *No CDN detected* - **[WARNING]** No CDN detected — A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them. ### HTTP Caching (F — 30/100) *No cache headers* - **[WARNING]** No Cache-Control header found — Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers. ### Transport Security (B — 75/100) *HTTP/3, HSTS, and TLS version analysis* - **[INFO]** HTTP/3 (QUIC) not advertised — HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it. - **[WARNING]** Missing Strict-Transport-Security header — HSTS tells browsers to only use HTTPS, preventing SSL stripping attacks. --- ## Accessibility ### Landmark Structure (B — 75/100) *14 landmarks* - **[PASS]**
landmark present - **[PASS]** 10