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gist.build

Automate Your In-App Messaging | Customer.io

Last scanned Jul 29, 2026, 4:00 PM · 10 views

92

Overall score

Excellent

Summary

Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks. This website uses Next.js behind Vercel CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: robots.txt not found.

Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks.

Top issues to fix

4 issues found

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

90

SEO

2 issue(s) found

90

Performance

95 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+1 overall since Jul 21, 2026

Overall
92
SEO
90
Security
90
Performance
90
Accessibility
100

Organization

Company details published in this site's own structured data.

Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks.

LinkedInX (Twitter)YouTubeInstagram

Meta tags

Title
Automate Your In-App Messaging | Customer.io
Description
Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks.
Canonical
https://customer.io/features/in-app-messages
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow
Manifest
https://customer.io/manifest.webmanifest

OpenGraph & Twitter Card

OpenGraph

og:title
Automate Your In-App Messaging | Customer.io
og:description
Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks.
og:type
website
og:url
https://customer.io/features/in-app-messages

Twitter Card

twitter:card
summary_large_image
twitter:title
Automate Your In-App Messaging | Customer.io
twitter:description
Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks.

Technologies

Detected frameworks, languages, and tools.

Next.js

Hosting & CDN

Hosting provider
—
CDN provider
Vercel
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
customer.io
Valid from
Jun 24, 2026
Valid to
Sep 22, 2026
Days until expiry
54
SAN domains
customer.io

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyEnabled

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 7 · H3 31

Links

39 internal · 13 external · 20 broken

Images

22 total · 0 missing alt

Scripts / Styles

92 scripts · 2 stylesheets

JS / CSS size

227 KB · 1.2 KB

Page size

479 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://gist.build
Final URL
https://customer.io/features/in-app-messages
HTTP status
200
HTTP version
HTTP/2
Response time
86 ms
HTML size
479 KB
Redirect chain
https://gist.build → https://customer.io/in-app-messages/ → https://customer.io/in-app-messages → https://customer.io/journeys/in-app-messages → https://customer.io/features/in-app-messages

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Frequently asked questions

What technology does gist.build use?
gist.build is built with Next.js.
Is gist.build secure (HTTPS)?
Yes. gist.build uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 22, 2026.
Who hosts gist.build?
Hosting provider information for gist.build is not available yet.
What is gist.build's SEO score?
gist.build scored 90/100 for SEO in the latest analysis (excellent).
What is gist.build's overall website score?
gist.build has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
Has gist.build's score changed over time?
gist.build's overall score has improved by 1 point (from 91 to 92) since Jul 21, 2026.