thinkorswim.com

https://thinkorswim.com· First analyzed 11 May 2026· Updated 11 May 2026

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thinkorswim.com

Mobile

Sponsored

Hosting Provider

Charles Schwab & Co., Inc.

IP Address

162.93.210.9

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS6949

Organization

Charles Schwab & Co., Inc.

Nameservers

np4.schwab.com.np1.schwab.com.np2.schwab.com.np3.schwab.com.+2 more

Performance

100

2 KB

0–49

50–89

90–100

Architecture Stack

Monolithic

🖥️ CSR

Infrastructure

Hosting

Charles Schwab & Co., Inc.

SEO Analysis

F38/100

Meta Tags12/15

Content0/12

Headings0/8

Technical14/21

E-E-A-T0/7

Images0/7

Links0/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

thinkorswim.comthinkorswim.com

thinkorswim Web Login | Charles Schwab

Once you have opened an account with Charles Schwab, log in to thinkorswim Web to access essential trading tools and begin trading on our web-based platform.

Title Length38 chars

Recommended: 50-60 chars (~235px / 580px)

Description Length157 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (6 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

7 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F30/100

Bot Access

20/25

Machine Read.

6/25

Schema Data

0/25

Citation

4/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:0

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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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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.

66/100

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

9/15

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.

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.

61/100

A+

<0.001 g

CO₂e / view

1.7 KB

Page Weight

95%

Cleaner Than

New Visitor

<0.001 g

Returning (cached)

<0.001 g

Annual (10K/mo)

24 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

HTML

1.7 KB

Green Hosting Not Verified

Charles Schwab & Co., Inc.

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Interactive

HTTPS

No WAF

163d

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/2

Valid From

06.10.2025

Valid Until

21.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

tosweb.schwab.comearlyaccess.thinkorswim.comtrade.thinkorswim.com.sgtrade.thinkorswim.com.hktrade.thinkorswim.comwww.thinkorswim.com

SHA-256 Fingerprint

02:7F:0B:A0:56:16:D3:AB:36:4B:96:1D:EB:10:7A:FA:96:88:12:68...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-credentials

true

cache-control

🔴 No Cache(no-cache, no-store, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

1401

content-security-policy

frame-ancestors 'self' wss://thinkorswim-services.schwab.com...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-00096901.gslb.pphosted.com

mxb-00096901.gslb.pphosted.com

Domain Information

thinkorswim.com

Domain Age

26y 8m

Created

09.09.1999

Expires

09.09.2026

Last Updated

08.08.2025

Registrar

MarkMonitor Inc.

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.

56/100

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, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

TOSSans

64/100

Readability

/30

17/30

14px · LH --

Hierarchy

/20

10/20

WCAG

/25

19/25

Performance

/25

18/25

1 font · 1 req

Heading Font

TOSSans

Body Font

TOSSans

Sans14px

Contrast Ratio

Reading Comfort

Single Family

left aligned

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

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

1 unique colors

Dark

#000000

Background· 100%

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Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.appdynamics.com(2)local(1)

Website Identity

thinkorswim.com

26 years old

Location detected: 🇺🇸 United Statesvia ip

MarkMonitor Inc.en

Sponsored

Last analyzed: 11 May 2026 at 09:20

Historical Analysis & Change Tracking