firstmark.com

https://firstmark.com· First analyzed 20 May 2026· Updated 20 May 2026

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firstmark.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

162.159.136.54

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns17.domaincontrol.com.ns18.domaincontrol.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

977 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.2 MB

51 requests

Image Optimization

WebPResponsiveimgix

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

Email Marketing

CDN

SEO Analysis

B74/100

Meta Tags9/15

Content9/12

Headings6/8

Technical24/25

E-E-A-T2/7

Images3/7

Links4/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

firstmark.comfirstmark.com

FirstMark

FirstMark is an early-stage venture capital firm in New York City. We back and accelerate founders making their mark on the world.

Title Length9 chars

Recommended: 50-60 chars (~56px / 580px)

Description Length130 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (39/39) — critical for accessibility and SEO

4 issues found

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Crawlability

Sitemap

Type: standard

441 URLs

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

7/25

Citation

14/25

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:3%

Words:457

Token eff.:Optimal

Sections/1K:17.5

Depth:1/5

Structured Data

3 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary21w

Descriptive Headingsavg 7.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

74/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

15/20

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

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.

2 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.

55/100

227 mg

CO₂e / view

2.2 MB

Page Weight

50%

Cleaner Than

New Visitor

259 mg

Returning (cached)

130 mg

Annual (10K/mo)

27.2 kg

Emission Segments

Data Center

11 mg

Network

67 mg

Device

149 mg

Resource Breakdown

JavaScript

86.1 KB

Images

1.9 MB

CSS

207.1 KB

HTML

12.7 KB

Other

18.1 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

38d

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

29.03.2026

Valid Until

27.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

firstmark.com

SHA-256 Fingerprint

2E:C4:FC:18:BE:AC:A0:E4:6F:7F:DF:FA:D3:AB:FD:88:A0:71:19:65...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

9926

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(max-age=0, s-maxage=2592000)

cf-cache-status

DYNAMIC

cf-ray

9fe8c891cd934cde-BOS

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

aspmx.l.google.com

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

firstmark.com

Domain Age

31y 7m

Created

27.10.1994

Expires

26.10.2026

Last Updated

05.01.2023

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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 Friendly2 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

AeonikFono + Graphik

WCAG Partial

64/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

15/20

10.44x ratio

WCAG

/25

15/25

1:1 min contrast

Performance

/25

12/25

System fonts

Heading Font

AeonikFono

Sans167px

Body Font

Graphik

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

~39 CPL

Narrow lines

167px

40px

23px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

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

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 10.4x larger than body text.

Buy on MyFontsFlesch 44

Color Palette

7 unique colors

Light

#0212b0

Primary· 52.1%

#eae7e2

Secondary· 19.900000000000002%

#081597

Accent· 16.099999999999998%

#1d2aa5

Accent· 6.4%

#b4b6cc

Secondary· 2.7%

#f4eb6a

Accent· 0.9%

Business & Marketing Stack

2 Tools Detected

Advanced

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(1)local(1)

Website Identity

FirstMark

Organization

FirstMark is an early-stage venture capital firm in New York City. We back and accelerate founders making their mark on the world.

firstmark.com/

31 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Sponsored

Last analyzed: 20 May 2026 at 05:01

Historical Analysis & Change Tracking