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SGSiteGraph

netlib.org

The Netlib

Last scanned Jul 26, 2026, 5:47 AM

79

Overall score

Fair

Summary

This website uses Nginx hosted on UTK - University of Tennessee, US. SEO is fair (60/100) and accessibility is good (85/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on UTK - University of Tennessee, US

Top issues to fix

12 issues found · 3 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+6 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

264 ms

75

Security

HTTPS & header checks

85

Accessibility

2 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
The Netlib
Description
Canonical
Language
Charset
Viewport
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
160.36.239.231
ASN
AS3450 (UTK - University of Tennessee, US)

DNS records

TypeValue
A
  • 160.36.239.231
AAAA
MX
  • netlib-org.mail.protection.outlook.com
TXT
  • MS=ms24564271
  • v=spf1 include:spf.protection.outlook.com -all
NS
  • ns1.utk.edu
  • ns0.utk.edu
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
netlib.org
Valid from
Jun 28, 2026
Valid to
Sep 26, 2026
Days until expiry
62
SAN domains
netlib.org, www.netlib.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

13 internal · 7 external · 5 broken

Images

1 total · 0 missing alt

Scripts / Styles

2 scripts · 0 stylesheets

JS / CSS size

42 B · 0 B

Page size

3.8 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute
  • Missing viewport meta tag

Scan details

Requested URL
https://netlib.org
Final URL
https://netlib.org
HTTP status
200
HTTP version
HTTP/2
Response time
264 ms
HTML size
3.8 KB
Redirect chain
https://netlib.org

See something wrong on this report? Request a correction

Frequently asked questions

What technology does netlib.org use?
netlib.org is built with Google Analytics, Nginx.
Is netlib.org secure (HTTPS)?
Yes. netlib.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 26, 2026.
Who hosts netlib.org?
netlib.org is hosted on UTK - University of Tennessee, US.
What is netlib.org's SEO score?
netlib.org scored 60/100 for SEO in the latest analysis (fair).
What is netlib.org's overall website score?
netlib.org has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.