ybu.edu.cn website report
延边大学
Last scanned · 2 views
Overall score
Fair
About ybu.edu.cn
ybu.edu.cn is a website.
Score profile
Top issues to fix
9 issues found · 2 high priority
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.
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.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+3 more issues — details in the sections below.
How it compares
ybu.edu.cn scores higher overall than 37% 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
ybu.edu.cn is built with jQuery.
Libraries (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
ybu.edu.cn uses TLS 1.3 with a certificate valid for 36 more days and sets 5 of 6 recommended security headers.
Security headers5 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
- 2
- Cookies set
- 0
Email security
ybu.edu.cn scores C for email security, with SPF and DMARC policy “quarantine”.
- SPFGood
Rejects senders not listed (-all).
- DMARCWeak
Forged mail is sent to spam.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Performance & carbon
ybu.edu.cn scores 90/100 for performance, with an estimated load time of 1.3 s. A visit emits an estimated 0.02 g of CO2 (grade A+).
Page weight
- HTML 59.3 KB
- JavaScript 5.8 KB
- CSS 810 B
- Est. load
- 1.29 s
- Response
- 1.29 s
- Scripts / CSS
- 28 / 7
Carbon per visitA+
0.02 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
ybu.edu.cn scores 50/100 for SEO and 80/100 for accessibility, with 7 SEO issues to fix.
Heading structure
No H1 found.
Image alt text
70 images · 3 without alt text · 0 lazy-loaded
Links
- Internal 71
- External 27
- Broken 20
SEO issues7
- Missing meta description
- 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 issues2
- No H1 heading found
- Missing <html lang> attribute
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- 延边大学
- Description
- 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
- https://ybu.edu.cn
- HTTP status
- 200
- Redirects
- https://ybu.edu.cn
- Scanned
- Aug 24, 2026, 1:23 PM
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<a href="https://sitegraph.tech/site/ybu-edu-cn"><img src="https://sitegraph.tech/badge/ybu-edu-cn.svg" alt="ybu.edu.cn on SiteGraph" width="190" height="20" /></a>See something wrong on this report? Request a correction or ask for something to be removed.
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Frequently asked questions about ybu.edu.cn
- What is ybu.edu.cn?
- ybu.edu.cn is a website.
- What technology does ybu.edu.cn use?
- ybu.edu.cn is built with jQuery.
- Is ybu.edu.cn secure?
- ybu.edu.cn uses TLS 1.3 with a certificate valid for 36 more days and sets 5 of 6 recommended security headers.
- Is ybu.edu.cn protected against email spoofing?
- ybu.edu.cn scores C for email security, with SPF and DMARC policy “quarantine”.
- How does ybu.edu.cn compare with similar sites?
- ybu.edu.cn scores higher overall than 37% of the 163,243 sites we have scanned.
- What is ybu.edu.cn's overall score?
- ybu.edu.cn has an overall SiteGraph score of 79/100, combining SEO (50), performance (90), security (100) and accessibility (80).
Open Graph & Twitter