istn.ac.id

https://istn.ac.id· First analyzed 10 May 2026· Updated 10 May 2026

Export

istn.ac.id

Mobile

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Hosting Provider

Wix

wix.com

IP Address

185.230.63.107

Site Location

🇮🇩 Indonesiavia tld

Server Location

🇺🇸 Ashburn, United States

ASN

AS58182

Organization

Wix Com Inc

Server

Pepyaka

CDN

Fastly

Nameservers

eva.ns.cloudflare.com.toby.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

353 ms10%

Speed Index

459 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.7 MB

248 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Wix

website_builder

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

7 Technologies Detected

Frameworks

Libraries

Other

CSS Frameworks

Customer Support

Analytics

SEO Analysis

C62/100

Meta Tags13/15

Content2/12

Headings3/8

Technical20/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

istn.ac.idistn.ac.id

Institut Sains dan Teknologi Nasional | ISTN Jakarta

Institut Sains dan Teknologi Nasional (ISTN) Jakarta adalah perguruan tinggi teknik swasta pertama di Indonesia yang didirikan tahun 1950 oleh Prof. Roosseno...

Description truncated.

Title Length52 chars

Recommended: 50-60 chars (~302px / 580px)

Description Length495 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (8 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

14 rules

Sitemap reference found

Local SEO

Local Search Readiness

7/100

Poor

2 14 1

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

3/25

Citation

7/25

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.txtvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:763

Token eff.:Optimal

Structured Data

2 JSON-LD

WebSiteSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

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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

591 mg

CO₂e / view

4.7 MB

Page Weight

15%

Cleaner Than

New Visitor

675 mg

Returning (cached)

338 mg

Annual (10K/mo)

70.9 kg

Emission Segments

Data Center

132 mg

Network

142 mg

Device

317 mg

Resource Breakdown

JavaScript

2.6 MB

Images

1.6 MB

CSS

1.8 KB

HTML

245.6 KB

Other

168.5 KB

Green Hosting Not Verified

Wix

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

34d

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+H3

Valid From

15.03.2026

Valid Until

13.06.2026

Subject Alternative Names (2)

istn.ac.idwww.istn.ac.id

SHA-256 Fingerprint

9A:B1:C7:83:38:7C:94:CE:A9:DF:14:0A:DD:E7:21:5F:13:79:2A:5F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

85766

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

cache-control

🟡 0s(public,max-age=0,must-revalidate)

content-encoding

⚡ Brotli(br)

content-language

en-US

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

alt4.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

istn.ac.id

Domain Age

26y 1m

Created

30.03.2000

Expires

31.10.2027

Last Updated

25.11.2024

Registrar

PT Aksara Data Digital

DNSSEC

Not Enabled

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.

69/100

Mobile Friendly42 breakpoints

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

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

avenir-lt-w01_35-light1475496 + futura-lt-w01-light

WCAG Partial

47/100

Readability

/30

18/30

14px · LH 1.40

Hierarchy

/20

4/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

10/25

System fonts

Heading Font

avenir-lt-w01_35-light1475496

Sans

Body Font

futura-lt-w01-light

Sans14px

Contrast Ratio

1:1

4 issues

Reading Comfort

~57 CPL

Optimal (45–75)

34px

14px

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

Buy on MyFontsFluid TypeFlesch 0

Color Palette

14 unique colors

Light

#7f9586

Secondary· 5.5%

#485d4c

Secondary· 12.600000000000001%

#022a65

Primary· 12.4%

#344e40

Secondary· 10.3%

#a2b8bc

Secondary· 8.5%

#8da4a6

Secondary· 8.1%

#6a896b

Secondary· 7.5%

#f7f9f9

Text· 6.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.parastorage.com(12)browser.sentry-cdn.com(2)

Website Identity

Institut Sains dan Teknologi Nasional

www.istn.ac.id

26 years old

Location detected: 🇮🇩 Indonesiavia tld

PT Aksara Data Digital📧 Google Workspaceen

Social Profiles

Facebook Instagram TikTok

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Last analyzed: 10 May 2026 at 14:38

Historical Analysis & Change Tracking