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oscarliang.com

https://oscarliang.com· First analyzed 09 May 2026· Updated 09 May 2026
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oscarliang.com
Desktop screenshot of oscarliang.com
Mobile screenshot of oscarliang.com
Mobile

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Hosting Provider

LiteSpeed
cloudflare.com

IP Address

188.114.96.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

cody.ns.cloudflare.com.fay.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
397 ms10%
Speed Index
516 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
187 KB
71 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
soledadv8.6.8Custom
by PenciDesign
View Theme

Technology Stack

21 Technologies Detected

Plugins

7
Contact Form 7
Cookie Law InfoLazy Load For VideosLightweight Grid ColumnsRecent Posts Widget ExtendedPenci Shortcodes
Yoast SEO

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

Icon Libraries

2
Font AwesomeMaterial Icons

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Payments

1
Square

CDN

1
Cloudflare

SEO Analysis

B73/100
22
3
1
Meta Tags13/15
Content3/12
Headings6/8
Technical21/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness2/4
Mobile3/4
Indexability3/3
O
oscarliang.comoscarliang.com

Oscar Liang - FPV Drone Tutorials and Reviews

FPV Drone Tutorials and Reviews, a blog for RC hobbyists to get latest information about quadcopter and multirotor products and technology development, deliv...

Description truncated.
Title Length45 chars

Recommended: 50-60 chars (~275px / 580px)

Description Length184 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (8 words). Search engines need substantial content for ranking.

4 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

9 rules

Sitemap reference found

Local SEO

Local Search Readiness

15/100
Poor
4 13

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

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AI & LLM Readiness

F35/100
Bot Access
20/25
Machine Read.
0/25
Schema Data
8/25
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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:8%
Words:9,198
Token eff.:Excessive

Structured Data

6 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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.
B
73/100
11
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •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.
78/100
A+
19 mg
CO₂e / view
187.4 KB
Page Weight
95%
Cleaner Than
New Visitor
22 mg
vs
Returning (cached)
11 mg
Annual (10K/mo)
2.3 kg
Emission Segments
Data Center
<0.001 g
Network
6 mg
Device
12 mg
Resource Breakdown
JavaScript
136.9 KB
HTML
50.5 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

WAF

59d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.04.2026

Valid Until

08.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

oscarliang.com*.oscarliang.com

SHA-256 Fingerprint

EA:C9:18:C1:6C:FB:C4:75:50:8C:72:43:34:B7:96:E8:DC:6A:7D:0B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9f9445b07b2098a1-CDG
content-encoding
zstd
content-type
text/html; charset=UTF-8
date
Sat, 09 May 2026 22:52:02 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

_dc-mx.ca1c447c5fce.oscarliang.com

Domain Information

oscarliang.com

Domain Age
11y 3m

Created

17.01.2015

Expires

17.01.2030

Last Updated

28.10.2024

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner
CookieYes
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieYes
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis 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.
B
73/100
Mobile Friendly44 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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG AA
69/100
Readability
/30
15/30

12px · LH 1.33

Hierarchy
/20
14/20

1.46x ratio · ✓ H1→H6

WCAG
/25
22/25

6.17:1 min contrast

Performance
/25
18/25

System fonts

Heading Font

Open Sans

Sans18px

Body Font

Open Sans

Sans12px

Contrast Ratio

6.17:1

WCAG AA (≥4.5:1)

Reading Comfort

~39 CPL

Narrow lines
18px
h1
16px
h2
16px
h3
16px
h4
12px
p
Minor Second
Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

✅ Easy to read: Flesch score 81/100 — accessible to general audiences.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.2:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

GGoogle FontsFlesch 81

Color Palette

6 unique colors
19.8:1 AAA Dark
#0a0a0a
Background· 54.2%
#ffffff
Background· 19.9%
#c3cbd5
Primary· 3.1%

Business & Marketing Stack

3 Tools Detected

Enterprise

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

1
GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

3

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Ad Networks

Google AdSenseMedia.netSovrnPubMaticOpenXIndex Exchange

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
3
Async
0
Defer

Top Script Sources

oscarliang.com(15)pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)googletagmanager.com(1)

Website Identity

Oscar Liang

Oscar Liang

Organization

FPV Drone Tutorials and Reviews

oscarliang.com/
11 years old
Location detected: 🇨🇦 Canadavia ip
GoDaddy.com, LLCen-GB

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Last analyzed: 09 May 2026 at 22:53

Historical Analysis & Change Tracking