# BeaverCheck Audit Report — https://academic.ru **Date:** April 22, 2026 **URL:** https://academic.ru **Overall Grade:** C (70/100) **Report:** https://beavercheck.com/results/3e7fac95-717f-4a66-8f33-c640de496d79 ## Top Findings 1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers 2. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy 3. **[CRITICAL]** 2 control(s) without accessible label — Accessibility > Form Accessibility 4. **[CRITICAL]** 2 link(s) with no accessible text — Accessibility > Link & Button Quality 5. **[CRITICAL]** No
landmark found — Accessibility > Landmark Structure --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 40 | | Accessibility | 84 | | Best Practices | 73 | | SEO | 100 | --- ## Security ### Security Headers (D — 50/100) *5 of 10 headers properly configured* - **[PASS]** Strict-Transport-Security is properly configured (consider adding preload) - **[PASS]** X-Content-Type-Options is properly configured - **[PASS]** X-Frame-Options is properly configured - **[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 1.3, 7 checks passed* - **[PASS]** TLS 1.3 is used - **[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 59 days) - **[PASS]** Certificate chain has 3 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 5 domain(s) - **[PASS]** Certificate is issued by a trusted CA ### Cookie Security (A+ — 100/100) *No cookies set — no cookie security risks* - **[PASS]** No cookies set — no cookie security risks --- ## Advanced Security ### Subresource Integrity (F — 20/100) *0 of 23 external resources have SRI* - **[WARNING]** External script from cdn-c.skcrtxr.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.acint.net 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 sb.scorecardresearch.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from mc.yandex.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from abt.s3.yandex.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.google-analytics.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from ads.digitalcaramel.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from yandex.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from r.mradx.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from yastatic.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from yandex.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from yandex.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.skcrtxr.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn-rtb.sape.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from tube.buzzoola.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from kimberlite.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from privacy-cs.mail.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from ad.mail.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from tube.buzzoola.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from ad.mail.ru lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from x01.aidata.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from static.a.mts.ru 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* - **[PASS]** security.txt is present — good practice - **[PASS]** No sensitive files exposed ### Email Security (F — 30/100) *No DMARC* - **[WARNING]** No DMARC record found — Without DMARC, email receivers have no policy for handling authentication failures. ### 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 (D — 54/100) *2.1 MB transferred, 382 requests* - **[INFO]** Page weighs 6.3 MB (2.1 MB transferred) - **[WARNING]** JavaScript is 1.5 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[WARNING]** 382 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests. - **[INFO]** Estimated 0.43 g CO2 per page load ### Third-Party Impact (D — 50/100) *98% third-party, 0 ms blocking* - **[WARNING]** Third-party code accounts for 98% of page weight (2.0 MiB of 2.1 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 — 75/100) *89 images, 0 KB saveable* - **[PASS]** All images are well-optimized ### JS Execution Cost (F — 20/100) *10535ms total JS execution* - **[WARNING]** Unattributable: 1725ms CPU time - **[WARNING]** https://academic.ru/: 1291ms CPU time - **[WARNING]** https://static.a.mts.ru/id/pixel.js: 1030ms CPU time - **[WARNING]** https://static.kimberlite.io/js/thumbmark.umd.js: 883ms CPU time - **[WARNING]** https://s.luxcdn.com/t/202172/360_light.js: 838ms CPU time - **[WARNING]** Third-party scripts: 9244ms (88% of total) ### Font Loading (A+ — 100/100) *1 fonts (26 KB)* - **[INFO]** 1 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (F — 20/100) *47 scripts, 569 KB unused* - **[WARNING]** https://s.luxcdn.com/t/202172/360_light.js: 105 KB unused (83%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://yastatic.net/partner-code-bundles/1304651/...: 85 KB unused (66%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://ads.digitalcaramel.com/caramel.js?ts=17768...: 80 KB unused (48%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-QXJR...: 62 KB unused (41%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://mc.yandex.ru/metrika/tag.js: 43 KB unused (51%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 569 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) *15 hints, 0 missing preconnects* - **[PASS]** Page uses 15 resource hint(s) ### Page Weight Inventory (F — 35/100) *382 resources · 2.1 MB · 569 KB savings available* - **[WARNING]** Page weight 1.1 MB over 1MB target - **[INFO]** ~569 KB of savings available - **[WARNING]** 375 third-party resources (98% of weight) - **[INFO]** 1 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 — 40/100) *200 links checked, 52 healthy, 148 broken* - **[CRITICAL]** 52 of 200 links are healthy - **[WARNING]** Broken link: https://www.googletagservices.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://pagead2.googlesyndication.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://an.yandex.ru — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://mc.yandex.ru — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://dic.academic.ru — Found in . Returns HTTP 429. - **[WARNING]** Broken link: https://avatars.mds.yandex.net — Found in . Returns HTTP 410. - **[WARNING]** Broken link: https://ads.adfox.ru — Found in . Returns HTTP 400. - **[CRITICAL]** Broken link: https://partners.academic.ru/partner_proposal.php — Found in . Get "https://partners.academic.ru/partner_proposal.php": context deadline exceeded - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_medicine/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/medic2/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/medic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://anatomy_atlas.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://psychology.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_psychology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/psihologic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_psychotherapeutic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://psychiatry.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://psihoanaliz.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://nlp.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/meditem/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://diseases.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://medicinal_plants.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_biology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/dic_biology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/dic_microbiology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/genetics/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://agricultural_dictionary.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/agriculture/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://veterinary.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://phytopathology.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://botanical_dictionary.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://plant_anatomy.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_animals/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_fish/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://fish.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://animals.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://birds.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mushrooms.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://breed.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://agricultural_animals.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://agricultural_terms.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dressirovka.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://flora_clgpbz.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_philosophy/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/dic_new_philosophy/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/china_philosophy/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://projective_philosophy.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://epistemology_of_science.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/logic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/socio/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://gender.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://sociolinguistics.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://sociolinguistics_dictionary.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/biblerus/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_bible/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://pravoslavniy_slovar.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://old_church.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/catholic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: http://king_james_bible.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://koran.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/islam/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://judaism.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/induism/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/buddhism/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_myphology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/relig/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://astrologic.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/vostok/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/simvol/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/lastnames/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/personal_names/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/sie/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/hist_dic/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_biography/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/biograf/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/biograf2/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://vostokoved.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/pseudonyms/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/russian_history/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_rus_mod_of_life_... — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://kazak.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/enc_monarchs/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://generals.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/battles/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://middle_age_world.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://antiquites.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/lubker/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://drevniy_mir.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dictionary_of_ancient.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://encyclopediya_3go_reicha.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://korabli_3go_reicha.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/etno/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://eponym.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://universal_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/eng_rus — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://big_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://combined_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mostitsky_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/muller — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/efin_dic — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://finance_and_debt.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/eng_rus_economy — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://economy_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://depository_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://law_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://politics_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://insurance_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mathematics_statistics_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://polytechnic_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://auto_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: http://physics_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://plastics_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://technical_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://computer_security_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mechanical_engineering_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://civil_aviation_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://aircraft_space_materials.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://technical_abbreviations.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/en_ru_metallurgy/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://rolling_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://aluminium_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/en_ru_geology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://hydrogeology_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/en_ru_geoecological/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://oil_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://eng_rus_building.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://traffic_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://ecology_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://biology_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://biotechnology_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://plant_tissue_culture_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://genetic_terms_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://medicine_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://immunology_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://wine_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/en_ru_ophthalmology/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://sociology_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://aphorisms_en_ru.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mid_en_ru.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://english_particles.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://universal_ru_en.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://law_ru_en.academic.ru — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://science_ru_en.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://dic.academic.ru/contents.nsf/rus_eng_mathematics — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://polytechnic_ru_en.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: http://auto_ru_en.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://technical_ru_en.academic.ru/ — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://mechanical_engineering_ru_en.academic.ru/ — Found in . Returns HTTP 429. ### Mixed Content (A+ — 100/100) *No mixed content detected — all resources use HTTPS.* - **[PASS]** No mixed content detected — all resources use HTTPS ### Open Graph (B — 85/100) *Open Graph tags are partially configured — some improvements recommended.* - **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it. - **[INFO]** og:description is short (35 characters) — Ideal length is 55–200 characters for social sharing previews. - **[INFO]** Missing twitter:card — Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control. ### Structured Data (C — 40/100) *No structured data (JSON-LD) found.* - **[INFO]** No structured data (JSON-LD) found — Adding structured data helps search engines understand your content and can enable rich results. --- ## Infrastructure ### DNS Records (A+ — 95/100) *1 A records, 90 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]** 7 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: 90 ms ### Redirect Chain (A+ — 100/100) *0 redirect(s), 274 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 426 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 426 entries - **[PASS]** Sitemap index with 426 child sitemaps - **[PASS]** robots.txt references sitemap ### URL Variants (A+ — 100/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[PASS]** www/non-www redirect configured correctly (preferred: non-www) - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A+ — 100/100) *academic.ru — via RU-CENTER-RU, 25 years, 8 months old, hosted on SELECTEL-MSK, RU* - **[PASS]** Domain registered until Dec 19, 2026 (8 months remaining) - **[PASS]** Registrar: RU-CENTER-RU - **[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: SELECTEL-MSK, RU --- ## 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 - **[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) *6 trackers detected* - **[INFO]** 6 third-party trackers detected — Found 4 analytics, 1 advertising, 0 marketing, 1 tag manager trackers. - **[WARNING]** 1 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 6 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) *0 cookies · 6 trackers · 0 pre-consent* - **[INFO]** 6 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 (C — 55/100) *No copyright notice detected* - **[INFO]** No copyright notice detected — No copyright notice detected in the page content. While not legally required in most jurisdictions (copyright exists automatically), a notice is standard practice and signals site ownership. ### 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 *1 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]** 1 third-party services across 1 categories — 1 third-party services detected across 1 categories: Analytics (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. ### 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 (A+ — 95/100) *max-age=1296000 (2 weeks)* - **[PASS]** Cache-Control header is set - **[PASS]** Effective TTL: 2 weeks (max-age=1296000) - **[PASS]** Last-Modified header present ### Transport Security (A — 90/100) *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. - **[PASS]** HSTS enabled (includeSubDomains) - **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT) --- ## Accessibility ### Landmark Structure (D — 40/100) *No landmarks* - **[CRITICAL]** No
landmark found — Screen reader users cannot quickly navigate to the primary content. Wrap your main content in
. - **[WARNING]** No