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algae.vn

https://algae.vn· First analyzed 15 May 2026· Updated 15 May 2026
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algae.vn
Desktop screenshot of algae.vn
Mobile screenshot of algae.vn
Mobile

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Hosting Provider

Vietnam Internet Network Information Center

IP Address

42.119.236.249

Site Location

🇻🇳 TP Hồ Chí Minh, Vietnamvia schema_nap

Server Location

🇻🇳 Ho Chi Minh City, Vietnam

ASN

AS18403

Organization

Vietnam Internet Network Information Center

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

mitch.ns.cloudflare.com.serenity.ns.cloudflare.com.

Performance

100
1.7 MB
29 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Vietnam Internet Network Information Center
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

C60/100
17
7
2
Meta Tags7/15
Content11/12
Headings3/8
Technical17/25
E-E-A-T2/7
Images1/7
Links4/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
A
algae.vnalgae.vn

Algae

Algae.vn cung cấp các giải pháp phát triển web tối ưu và chất lượng, đáp ứng nhu cầu của nhiều doanh nghiệp. Dịch vụ bao gồm thiết kế web, tối ưu hóa, bảo t...

Description truncated.
Title Length5 chars

Recommended: 50-60 chars (~28px / 580px)

Description Length299 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (4/7) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3 URLs

robots.txt

Local SEO

Local Search Readiness

35/100
Needs Work
10 10

Sponsored

AI & LLM Readiness

D49/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
3/25
Citation
12/25

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:17%
Words:1,312
Token eff.:Optimal
Sections/1K:13.7
Depth:1/5

Structured Data

1 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary39w
Descriptive Headingsavg 5.9w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
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
11
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
37/100
D
219 mg
CO₂e / view
1.7 MB
Page Weight
60%
Cleaner Than
New Visitor
250 mg
vs
Returning (cached)
125 mg
Annual (10K/mo)
26.3 kg
Emission Segments
Data Center
49 mg
Network
53 mg
Device
118 mg
Resource Breakdown
JavaScript
187.1 KB
Images
558.8 KB
CSS
957.6 KB
Fonts
59.5 KB
HTML
7.6 KB
Green Hosting Not Verified
Vietnam Internet Network Information Center
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

46%Poor
Interactive

HTTPS

No WAF

79d

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

05.05.2026

Valid Until

03.08.2026

Subject Alternative Names (5)

algae.vnblog.algae.vncp.algae.vndev.algae.vnmail.algae.vn

SHA-256 Fingerprint

EB:F0:05:9C:53:89:F2:9B:78:F5:60:37:B5:0A:8D:74:50:A1:14:71...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Fri, 15 May 2026 08:23:28 GMT
etag
W/"67fbbb8e-8f9f"
last-modified
Sun, 13 Apr 2025 13:26:38 GMT
Good Warning Issue

Email Infrastructure

Zoho Mail

Score

70

SPF
DKIM
DMARC

MX Records (3)

mx.zoho.com
mx3.zoho.com
mx2.zoho.com

Domain Information

algae.vn

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.
A
81/100
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

Typography & Readability

Segoe UI

WCAG Partial
75/100
Readability
/30
27/30

18px · LH 1.50

Hierarchy
/20
15/20

2.22x ratio · ✓ H1→H6

WCAG
/25
12/25

1:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Segoe UI

Sans40px

Body Font

Segoe UI

Sans18px

Contrast Ratio

1:1

16 issues

Reading Comfort

~34 CPL

Narrow lines
40px
h1
56px
h2
56px
h3
24px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 16 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 2.2x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

GGoogle FontsFlesch 52

Color Palette

1 unique colors
Light
#ffffff
Primary· 100%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

10 Resources

7
Scripts
3
Styles
5
Async
0
Defer

Top Script Sources

ajax.googleapis.com(1)scripts.clarity.ms(1)gstatic.com(1)clarity.ms(1)googletagmanager.com(1)

Website Identity

Algae

Algae

Organization

Algae cung cấp các giải pháp phát triển web tối ưu và chất lượng, bao gồm thiết kế web, tối ưu hóa, bảo trì và phát triển nội dung.

info@algae.vn
076-480-6498
algae.vn/

63 Bùi Hữu Nghĩa, quận 5, TP Hồ Chí Minh

TP Hồ Chí Minh

VN

Location detected: 🇻🇳 Vietnam, TP Hồ Chí Minhvia schema_nap
📧 Zoho Mailvi

Sponsored

Last analyzed: 15 May 2026 at 08:23

Historical Analysis & Change Tracking