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Improve Core Web Vitals — see the PageSpeed Insights report for specifics.
Most images lack alt text — add descriptive alt attributes.
Add `Strict-Transport-Security: max-age=31536000; includeSubDomains`.
Recommendations are ranked by their impact on your score.
HTTPS & HTTP→HTTPS redirect
HTTPS available; HTTP redirects to HTTPS
TLS certificate validity
Valid; expires in 130 days
expires 2026-11-15 · GlobalSign GCC R6 AlphaSSL CA 2025HSTS (Strict-Transport-Security)
No Strict-Transport-Security header
Add `Strict-Transport-Security: max-age=31536000; includeSubDomains`.
Content-Security-Policy
No Content-Security-Policy header
Add a Content-Security-Policy to mitigate and injection.
Core security headers
Missing: X-Frame-Options, Referrer-Policy
Add the missing headers: X-Frame-Options, Referrer-Policy.
Mixed content (HTTP on HTTPS)
No insecure (http://) subresources
SPF email anti-spoofing
record present
v=spf1 redirect=_spf.mos.ruDMARC email anti-spoofing
record present
v=DMARC1;p=reject;sp=reject;ruf=mailto:postmaster@mos.ru;fo=1;aspf=s;adkim=sVulnerable front-end libraries
No recognizable front-end library versions detected
Time to First Byte
228 ms
Text compression
Enabled (gzip)
HTTP/2 or HTTP/3
HTTP/2.0
Cache-Control
no-cache, private
Core Web Vitals (PageSpeed)
perf 62/100, 1514ms, 0.18 (field)
Improve Core Web Vitals — see the PageSpeed Insights report for specifics.
Page title
Официальный сайт Мэра Москвы
Meta description
194 characters
Новости о Москве и для Москвы из первых уст. Городские услуги, события и советы по самым актуальным вопросам — всё о столице на одном портале. Официальный сайт Мэра и Правительства Москвы mos.ruAim for a meta description of about 50–160 characters.
Single H1
1 H1 tag(s)
Портал МосквыImage alt text
1/11 images have alt (9%)
Most images lack alt text — add descriptive alt attributes.
Structured data (JSON-LD)
present
WebSite, SearchAction, OrganizationCMS detection
Next.js
CMS known vulnerabilities
Next.js detected, but no reliable version — no vulnerability claim
Web server
nginx
CDN detection
No CDN fingerprint detected
TLS version
TLS 1.3
IPv6 (AAAA record)
No AAAA record
Add an AAAA record to serve visitors over IPv6.
Domain blacklist status
Not on major blocklists
checked: Spamhaus DBL, SURBLDomain age
Registration date unavailable
Domain expiry
Expiry date unavailable
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<a href="https://chkweb.com/report/mos.ru"><img src="https://chkweb.com/badge/mos.ru.svg" alt="Website security checked by CheckWeb" /></a>