yf991.net website report
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Last scanned · 1 view
Overall score
Fair
About yf991.net
yf991.net is a website. It describes itself as “ӣ������|��������|����������ѯ|����������ѯʦ��ѵ|������������|��ͯע����ѵ�� ��������ҽ�� ������Ԥ ��ͥ������ѵ �������� ������ѯ”.
Score profile
Top issues to fix
15 issues found · 6 high priority
No valid HTTPS/TLS certificate
SecurityServe the site over HTTPS (a free Let's Encrypt certificate works) — browsers mark HTTP sites as Not Secure and Google demotes them.
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
Slow estimated load (5.3s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
+9 more issues — details in the sections below.
How it compares
yf991.net scores higher overall than 5% 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
yf991.net is built with Nginx.
Servers (1)
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/1.1
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
yf991.net did not present a TLS certificate and sets 0 of 6 recommended security headers.
Security headers0 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
No TLS certificate was presented.
Email security
yf991.net does not receive email, but does not fully block others from sending mail in its name.
No MX records: this domain does not receive mail.
- SPFNot set
No SPF record: anyone can claim to send mail from this domain.
- 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).
Performance & carbon
yf991.net scores 80/100 for performance, with an estimated load time of 5.3 s. A visit emits an estimated 0.01 g of CO2 (grade A+).
Page weight
- HTML 21.6 KB
- JavaScript 315 B
- Est. load
- 5.32 s
- Response
- 5.32 s
- Scripts / CSS
- 6 / 1
Carbon per visitA+
0.01 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
yf991.net scores 60/100 for SEO and 50/100 for accessibility, with 6 SEO issues to fix.
Heading structure
No H1 found.
Image alt text
41 images · 27 without alt text · 0 lazy-loaded
Links
- Internal 95
- External 9
- Broken 20
SEO issues6
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues3
- Over half of images are missing alt text
- No H1 heading found
- Missing <html lang> attribute
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- ����ӣ��������ѯ����
- Description
- ����ӣ������|��������|����������ѯ|����������ѯʦ��ѵ|������������|��ͯע����ѵ�� ��������ҽ�� ������Ԥ ��ͥ������ѵ �������� ������ѯ
- Canonical
- Language
- 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
- 0
- RDFa items
- 0
Scan
- Final URL
- http://yf991.net/
- HTTP status
- 200
- Redirects
- https://yf991.net → http://yf991.net/
- Scanned
- Aug 24, 2026, 1:22 PM
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Frequently asked questions about yf991.net
- What is yf991.net?
- yf991.net is a website. It describes itself as “ӣ������|��������|����������ѯ|����������ѯʦ��ѵ|������������|��ͯע����ѵ�� ��������ҽ�� ������Ԥ ��ͥ������ѵ �������� ������ѯ”.
- What technology does yf991.net use?
- yf991.net is built with Nginx.
- Is yf991.net secure?
- yf991.net did not present a TLS certificate and sets 0 of 6 recommended security headers.
- Is yf991.net protected against email spoofing?
- yf991.net does not receive email, but does not fully block others from sending mail in its name.
- How does yf991.net compare with similar sites?
- yf991.net scores higher overall than 5% of the 163,243 sites we have scanned.
- What is yf991.net's overall score?
- yf991.net has an overall SiteGraph score of 57/100, combining SEO (60), performance (80), security (35) and accessibility (50).
Open Graph & Twitter