osnova.tv website report
ОСНОВА™
Last scanned
Overall score
Fair
About osnova.tv
osnova.tv is a website.
Score profile
Top issues to fix
9 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+3 more issues — details in the sections below.
How it compares
osnova.tv scores higher overall than 20% of the 163,243 sites we have scanned.
vs. All scanned sites
163,243 sitesThe dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.
Technology stack
osnova.tv is built with Google Analytics.
Analytics (1)
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/2
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
osnova.tv serves a certificate that fails verification (expired) and sets 4 of 6 recommended security headers.
Security headers4 of 6 set
- HSTSForces HTTPS
- CSPBlocks injected scripts
- X-Frame-OptionsStops clickjacking
- X-Content-TypeStops MIME sniffing
- Referrer-PolicyLimits URL leakage
- Permissions-PolicyRestricts browser features
TLS certificate
- Names covered
- 1
- Cookies set
- 0
Email security
osnova.tv scores D for email security, with SPF and no DMARC policy.
- SPFGood
Rejects senders not listed (-all).
- DMARCNot set
No DMARC policy: forged mail is not told to be rejected.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Mail services authorised in SPF: Google Workspace
Performance & carbon
osnova.tv scores 90/100 for performance, with an estimated load time of 2.5 s. A visit emits an estimated 0.10 g of CO2 (grade A).
Page weight
- HTML 177 KB
- JavaScript 61.5 KB
- CSS 38.9 KB
- Est. load
- 2.54 s
- Response
- 2.54 s
- Scripts / CSS
- 20 / 3
Carbon per visitA
0.10 g CO2 per uncached view
Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.
SEO & accessibility
osnova.tv scores 55/100 for SEO and 60/100 for accessibility, with 6 SEO issues to fix.
Heading structure
No H1 found.
Image alt text
7 images · 7 without alt text · 0 lazy-loaded
Links
- Internal 17
- External 5
- Broken 1
SEO issues6
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues2
- Over half of images are missing alt text
- No H1 heading found
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- ОСНОВА™
- Description
- Canonical
- Language
- en-US
- Robots meta
Crawl files
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
Structured data
No JSON-LD types declared.
- Microdata items
- 2
- RDFa items
- 0
Scan
- Final URL
- https://www.osnova.tv/
- HTTP status
- 200
- Redirects
- https://osnova.tv → http://www.osnova.tv/ → https://www.osnova.tv/
- Scanned
- Aug 24, 2026, 1:23 PM
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Frequently asked questions about osnova.tv
- What is osnova.tv?
- osnova.tv is a website.
- What technology does osnova.tv use?
- osnova.tv is built with Google Analytics.
- Is osnova.tv secure?
- osnova.tv serves a certificate that fails verification (expired) and sets 4 of 6 recommended security headers.
- Is osnova.tv protected against email spoofing?
- osnova.tv scores D for email security, with SPF and no DMARC policy.
- How does osnova.tv compare with similar sites?
- osnova.tv scores higher overall than 20% of the 163,243 sites we have scanned.
- What is osnova.tv's overall score?
- osnova.tv has an overall SiteGraph score of 74/100, combining SEO (55), performance (90), security (90) and accessibility (60).
Open Graph & Twitter