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houstonisd.org

https://houstonisd.org· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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houstonisd.org
Desktop screenshot of houstonisd.org
Mobile screenshot of houstonisd.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.17.71.73

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1742.awsdns-25.co.uk.ns-412.awsdns-51.com.ns-997.awsdns-60.net.ns-1428.awsdns-50.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
396 ms10%
Speed Index
515 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
88 KB
71 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

9 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Microsoft ClarityFullStory

CSS Frameworks

2
Bootstrap
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Customer Support

1
Zendesk

SEO Analysis

C65/100
18
8
0
Meta Tags10/15
Content11/12
Headings8/8
Technical14/21
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile1/4
Indexability3/3
H
houstonisd.orghoustonisd.org

Home - Houston Independent School District

Home - Houston Independent School District

Title Length42 chars

Recommended: 50-60 chars (~254px / 580px)

Description Length42 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    215 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    11/100
    Poor
    3 12 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    F39/100
    Bot Access
    20/25
    Machine Read.
    3/25
    Schema Data
    0/25
    Citation
    16/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:12%
    Words:3,716
    Token eff.:Poor Structure
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary50w
    Descriptive Headingsavg 3.7w
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    A+
    91/100
    16
    Passed
    1
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    78/100
    A+
    9 mg
    CO₂e / view
    88.0 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    10 mg
    vs
    Returning (cached)
    5 mg
    Annual (10K/mo)
    1.1 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    3 mg
    Device
    6 mg
    Resource Breakdown
    CSS
    65.9 KB
    HTML
    21.4 KB
    Other
    683 B
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    86%Very Good
    Interactive

    HTTPS

    WAF

    40d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    10.03.2026

    Valid Until

    08.06.2026

    Subject Alternative Names (1)

    www.houstonisd.org

    SHA-256 Fingerprint

    9E:9C:2C:16:7A:75:CE:BA:08:4B:6A:BC:56:34:4A:B0:E3:4A:AA:CA...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    205
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 30s(public, s-maxage=300, max-age=30, stale-if-error=21600, stal...)
    cf-cache-status
    HIT
    cf-ray
    9f3acdf0df5f6498-BOS
    content-encoding
    ⚡ Brotli(br)
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    houstonisd-org.mail.protection.outlook.com

    Domain Information

    houstonisd.org

    Domain Age
    28y 5m

    Created

    25.11.1997

    Expires

    24.11.2033

    Last Updated

    29.11.2023

    Registrar

    Network Solutions, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer mentioned

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    C
    66/100
    Mobile Friendly1 breakpoint
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width, initial-scale=1, shrink-to-fit=no
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Radio Canada + Parkinsans

    WCAG Partial
    65/100
    Readability
    /30
    22/30

    16px · LH 1.63

    Hierarchy
    /20
    18/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    11/25

    2 fonts · 7 req

    Heading Font

    Radio Canada

    Sans48px

    Body Font

    Parkinsans

    Sans16px

    Contrast Ratio

    1:1

    7 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    48px
    h1
    48px
    h2
    22px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    ⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

    Buy on MyFonts

    Color Palette

    10 unique colors
    5.74:1 AA Light
    #f1f1f3
    Border· 20.700000000000003%
    #5e5e60
    Other· 10.3%
    #56a4a9
    Primary· 14.5%
    #9ebaba
    Secondary· 5.3%
    #dad5d0
    Border· 4.4%
    #568083
    Secondary· 2.4%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    16 Resources

    13
    Scripts
    3
    Styles
    8
    Async
    1
    Defer

    Top Script Sources

    local(3)googletagmanager.com(2)wsv3cdn.audioeye.com(2)scripts.clarity.ms(1)clarity.ms(1)

    Website Identity

    houstonisd.org

    28 years old
    Location detected: 🇨🇦 Canadavia ip
    Network Solutions, LLC📧 Microsoft 365en-US

    Sponsored

    Last analyzed: 29 Apr 2026 at 02:17

    Historical Analysis & Change Tracking