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gist.build

Automate Your In-App Messaging | Customer.io

Last scanned Jul 21, 2026, 11:40 AM · 2 views

91

Overall score

Excellent

Top issues to fix

1 issue found

  • Missing X-Frame-Options header

    Security

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

Summary

Create high-performing multi-channel campaigns by combining in-app messages with email, push, SMS, and webhooks. This website uses Next.js hosted on AWS behind Vercel CDN. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (75/100).

100

SEO

0 issue(s) found

75

Performance

135 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

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

Contact

Email, phone, and address published on this site's own pages.

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.

Hosting & CDN

Hosting provider
AWS
CDN provider
Vercel
IP address
76.76.21.21
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 76.76.21.21
AAAA
MX
  • aspmx3.googlemail.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx2.googlemail.com
TXT
NS
  • ns-499.awsdns-62.com
  • ns-618.awsdns-13.net
  • ns-1181.awsdns-19.org
  • ns-1893.awsdns-44.co.uk
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
63
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 · 12 external · 0 broken

Images

22 total · 0 missing alt

Scripts / Styles

94 scripts · 2 stylesheets

JS / CSS size

1.4 MB · 181 KB

Page size

477 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
5
sitemap.xml
Found
URLs in sitemap
479

SEO issues

No SEO issues detected.

Accessibility issues

No accessibility issues detected.

Products & pricing

Product and pricing information published in this site's own structured data.

Trusted by 9,000+ brands around the world

$10 USD

Essentials

$100 USD

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

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
126 ms
HTML size
477 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

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?
gist.build is hosted on AWS, behind Vercel CDN.
What is gist.build's SEO score?
gist.build scored 100/100 for SEO in the latest analysis (excellent).
What is gist.build's overall website score?
gist.build has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
What products does gist.build offer?
gist.build offers Trusted by 9,000+ brands around the world, Essentials.
Is gist.build hiring?
gist.build has a careers page; check it directly for current openings.