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sajs.co.za

https://sajs.co.za· First analyzed 14 May 2026· Updated 14 May 2026
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sajs.co.za
Desktop screenshot of sajs.co.za
Mobile screenshot of sajs.co.za
Mobile

Sponsored

Hosting Provider

Xneelo Tscolo

IP Address

156.38.235.98

Site Location

🇿🇦 South Africavia tld

Server Location

🇿🇦 Pretoria, South Africa

ASN

AS37153

Organization

Xneelo Tscolo

Server

Apache

Nameservers

ns1.host-h.net.ns2.host-h.net.ns2.dns-h.com.ns1.dns-h.com.

Performance

89

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8.2 MB
44 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Xneelo Tscolo

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Google Tag Manager

Libraries

2
jQuery
jQuery UI

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Web Servers

1
Apachev2.4.66

SEO Analysis

C66/100
18
9
0
Meta Tags10/15
Content12/12
Headings7/8
Technical14/25
E-E-A-T3/7
Images4/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sajs.co.zasajs.co.za

South African Journal of Science

The South African Journal of Science is a multidisciplinary journal published bimonthly by the Academy of Science of South Africa. The South African Journal ...

Description truncated.
Title Length32 chars

Recommended: 50-60 chars (~191px / 580px)

Description Length277 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    16 rules

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 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

    F37/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    6/25

    AI Bot Access

    12/14 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:10%
    Words:743
    Token eff.:Optimal
    Sections/1K:17.5
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary33w
    Descriptive Headingsavg 1.6w
    Canonical URL
    Open Graph0/3
    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
    81/100
    12
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    14/100
    F
    1.04 g
    CO₂e / view
    8.2 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.19 g
    vs
    Returning (cached)
    595 mg
    Annual (10K/mo)
    125.0 kg
    Emission Segments
    Data Center
    233 mg
    Network
    250 mg
    Device
    559 mg
    Resource Breakdown
    JavaScript
    167.1 KB
    Images
    7.9 MB
    CSS
    192.7 KB
    HTML
    9.1 KB
    Other
    12.6 KB
    Green Hosting Not Verified
    Xneelo Tscolo
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    30d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    16.03.2026

    Valid Until

    14.06.2026

    Subject Alternative Names (7)

    cleanairjournal.org.zajournals.assaf.org.zasajs.co.zawatersa.netwww.cleanairjournal.org.zawww.sajs.co.zawww.watersa.net

    SHA-256 Fingerprint

    7B:A0:05:F3:43:E5:07:07:2F:72:60:8F:D7:8B:87:AB:A4:5A:FB:3D...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store)
    content-encoding
    📦 Gzip(gzip)
    content-length
    9069
    content-type
    text/html; charset=utf-8
    date
    Thu, 14 May 2026 21:25:08 GMT
    server
    Apache/2.4.66 (Ubuntu)
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    sajs.co.za

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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
    65/100
    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=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Noto Sans

    WCAG Partial
    58/100
    Readability
    /30
    15/30

    14px · LH 1.78

    Hierarchy
    /20
    16/20

    2x ratio

    WCAG
    /25
    17/25

    1.42:1 min contrast

    Performance
    /25
    10/25

    System fonts

    Heading Font

    Noto Sans

    Sans28px

    Body Font

    Noto Sans

    Sans14px

    Contrast Ratio

    1.42:1

    2 issues

    Reading Comfort

    ~44 CPL

    Narrow lines
    28px
    h1
    18px
    h2
    14px
    h4
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ❌ Very complex text: Flesch score 10/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.4:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Buy on MyFontsFlesch 11

    Color Palette

    10 unique colors
    Light
    #ffffff
    Background· 51.50000000000001%
    #141e40
    Primary· 7.9%
    #3d586e
    Secondary· 6%
    #9c7b6a
    Secondary· 5.3%
    #a4b3b9
    Secondary· 5.3%
    #e4cebe
    Secondary· 0.7%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    13 Resources

    8
    Scripts
    5
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    sajs.co.za(7)googletagmanager.com(1)

    Website Identity

    sajs.co.za

    Location detected: 🇿🇦 South Africavia tld
    en

    Sponsored

    Last analyzed: 14 May 2026 at 21:25

    Historical Analysis & Change Tracking