osapublishing.org

https://osapublishing.org· First analyzed 23 Apr 2026· Updated 23 Apr 2026

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osapublishing.org

Mobile

Sponsored

Hosting Provider

The Optical Society

IP Address

38.95.177.60

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Washington, United States

ASN

AS174

Organization

The Optical Society

Server

xx4_27891

Nameservers

ns2.ns2402.yogi.osa.org.yogi2.osa.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

106 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

The Optical Society

Technology Stack

13 Technologies Detected

Libraries

Analytics

CSS Frameworks

Other

Icon Libraries

Fonts

Tag Managers

Advertising

SEO Analysis

D50/100

Meta Tags4/15

Content11/12

Headings1/8

Technical13/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

osapublishing.orgosapublishing.org

Optica Publishing Group

No description available for this page.

Title Length23 chars

Recommended: 50-60 chars (~139px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

57 rules

Local SEO

Local Search Readiness

7/100

Poor

3 13 2

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

Sponsored

AI & LLM Readiness

F36/100

Bot Access

14/25

Machine Read.

13/25

Schema Data

0/25

Citation

9/25

AI Bot Access

7/14 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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:9%

Words:2,477

Token eff.:Optimal

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary1159w

Descriptive Headingsavg 3w

Canonical URL

Open Graph0/3

Twitter Card0/3

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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

3/15

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.

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.

29/100

260 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

297 mg

Returning (cached)

149 mg

Annual (10K/mo)

31.2 kg

Emission Segments

Data Center

58 mg

Network

62 mg

Device

140 mg

Resource Breakdown

JavaScript

404.3 KB

Images

1.1 MB

CSS

545.6 KB

Fonts

2.2 KB

HTML

22.5 KB

Green Hosting Not Verified

The Optical Society

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

60%Fair

Critical / Transactional

HTTPS

No WAF

133d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

01.09.2025

Valid Until

03.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

opg.optica.orgwww.osapublishing.orgosapublishing.org

SHA-256 Fingerprint

62:21:2E:74:CD:88:8B:42:8F:91:34:70:59:0E:A8:02:0F:52:F8:31...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self' data: 'unsafe-inline' https://*.brightcov...

content-type

text/html;charset=UTF-8

cross-origin-resource-policy

cross-origin

date

Thu, 23 Apr 2026 06:20:13 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

osapublishing.org

Domain Age

12y 1m

Created

15.03.2014

Expires

15.03.2030

Last Updated

19.01.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

72/100

Mobile Friendly24 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Archivo

WCAG Partial

55/100

Readability

/30

18/30

14px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

18/25

1.48:1 min contrast

Performance

/25

9/25

1 font · 12 req

Heading Font

Archivo

Body Font

Archivo

Sans14px

Contrast Ratio

1.48:1

7 issues

Reading Comfort

~42 CPL

Narrow lines

21px

14px

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

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

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.5:1).

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 20

Color Palette

10 unique colors

21:1 AAA Dark

#000000

Background· 42.9%

#ffffff

Background· 16.200000000000003%

#012852

Accent· 9.2%

#860101

Accent· 6.5%

#a687c8

Secondary· 6.1%

#202739

Primary· 4.4%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)googletagmanager.com(3)connect.facebook.net(2)google-analytics.com(1)tags.srv.stackadapt.com(1)

Website Identity

osapublishing.org

12 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLCen

Social Profiles

Facebook X (Twitter)LinkedIn

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Last analyzed: 23 Apr 2026 at 06:20

Historical Analysis & Change Tracking