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cert.org

https://cert.org· First analyzed 14 Feb 2026· Updated 14 Feb 2026
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cert.org
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Hosting Provider

super.so

IP Address

147.72.252.242

Server Location

🇺🇸 Pittsburgh, United States

ASN

AS36407

Organization

Pittsburgh Supercomputing Center

Nameservers

ns-1794.awsdns-32.co.uk.ns-28.awsdns-03.com.ns-916.awsdns-50.net.ns-1403.awsdns-47.org.

Performance

Page Speed

1.8 MB
46 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Super.so

Technology Stack

6 Technologies Detected

CSS Frameworks

1

Icon Libraries

1

Tag Managers

1

Advertising

1

SEO Analysis

A85/100
11
2
0
C
cert.orgcert.org

CERT

The Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems.

Title Length4 chars

Recommended: 50-60 chars

Description Length127 chars

Recommended: 120-160 chars

Issues (0)

    Sponsored

    Sponsored

    A

    Security Score

    84%Very Good
    Interactive

    HTTPS

    No WAF

    18d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Internet2

    Key Algorithm

    ECDSA (secp384r1) (384 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    02.02.2026

    Valid Until

    04.03.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (5)

    www.sei.cmu.eduinsights.sei.cmu.edupartner-application.sei.cmu.eduresources.sei.cmu.edusei.cmu.edu

    SHA-256 Fingerprint

    17:73:D4:45:A0:E9:2B:85:0B:77:54:0C:FA:DC:D1:F7:53:16:1F:15...

    Top Recommendations

    Security recommendation preview

    HTTP Headers

    Developer Console

    age
    95
    cache-control
    🟡 600s(max-age=600)
    content-length
    131312
    content-security-policy
    frame-ancestors 'self';
    content-type
    text/html; charset=utf-8
    cross-origin-opener-policy
    same-origin
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    tingley.sei.cmu.edu
    tilton.sei.cmu.edu

    Domain Information

    cert.org

    Domain Age
    34y 1m

    Created

    31.12.1991

    Expires

    18.11.2034

    Last Updated

    27.11.2024

    Registrar

    Amazon Registrar, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked

    Typography & Readability

    ui-sans-serif

    81/100
    Readability
    /30
    40/40

    20px · LH 1.40

    Hierarchy
    /20
    18/25

    2.4x ratio

    WCAG
    /25
    15/15

    Contrast: undefined

    Performance
    /25
    13/20

    1 font

    Heading Font

    ui-sans-serif

    Sans48px

    Body Font

    ui-sans-serif

    Sans20px

    Contrast Ratio

    --

    Reading Comfort

    ~39 CPL

    Needs attention
    48px
    h1
    30px
    h2
    20px
    h4
    20px
    p

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

    ✅ Strong hierarchy: Headlines are 2.4x larger than body text.

    ✅ Good performance: Using 1 font families keeps load times fast.

    ✅ Consistent design: Single font family with weight variations is a modern best practice.

    ✅ Smart font loading: Using font-display: swap prevents invisible text during load.

    Business & Marketing Stack

    4 Tools Detected

    Enterprise

    Behavior Analytics

    2

    User behavior and product analytics

    Advertising

    1

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1

    Cookie consent and privacy compliance tools

    3

    Categories

    4

    Total Tools

    2

    Enterprise

    0

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    17 Resources

    9
    Scripts
    8
    Styles
    4
    Async
    0
    Defer

    Top Script Sources

    local(3)googletagmanager.com(2)snap.licdn.com(1)cdn.cookielaw.org(1)cdn.jsdelivr.net(1)

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    Last analyzed: 14 Feb 2026 at 12:02

    Historical Analysis & Change Tracking