ysi.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-16 · ok HTTP/1.1 200 2189 ms crawled 2026-05-04

US · 76.223.4.123 · AS16509 Amazon.com, Inc.

Reputation 95/100 weak security headers

sector tech type homepage

HTML metadata

Title: YSI | Water Quality Sampling and Monitoring Meters and Instruments for dissolved oxygen, pH, turbidity
Description: YSI has pioneered the development of high-quality water sensing instrumentation for use in environmental monitoring. Providing accurate water quality monitoring solutions, sampling, and turn-key equipment that is easy to use, install and ensures you obtain the highest-quality data in the field or laboratory.
Canonical: https://www.ysi.com

Technology

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (10)

ajax.aspnetcdn.com×3
ajax.googleapis.com×2
www.googletagmanager.com×2
app-cf.bc0a.com×1
app-sj21.marketo.com×1
fonts.googleapis.com×1
marvel-b2-cdn.bc0a.com×1
platform-api.sharethis.com×1
px.ads.linkedin.com×1
script.crazyegg.com×1

Social

Contact

Phone

19376884255

Registration

Registrar

CSC Corporate Domains, Inc.

Created

1994-02-07

Expires

2027-02-08 264 days left

Updated

2026-02-04

Name servers

ns3.flygt.com
ns4.flygt.com

DNS records live

NS

ns3.flygt.com
ns4.flygt.com

MX

10 mxa-003d2901.gslb.pphosted.com
10 mxb-003d2901.gslb.pphosted.com

TXT

Show 9 TXT records

identrust_validate=i+B3tr3j1Z5OuYhgs0+NVVsVmF5swD+d0Tr/MqgnaE5m
QuoVadis=0270bb0c-32cd-4582-94b5-c6c653bd65b2
MS=ms68159280
identrust_validate=rXkYRl+op7xF4tZ3R7iSjtDCm+8nymK59UZWOpUVwyZc
QuoVadis=486f0090-b88a-4b60-be68-4c0b8e7593cb
v=spf1 ip4:142.0.176.23 ip4:204.8.105.35 ip4:204.8.106.36 ip4:205.220.178.88 ip4:205.220.166.88 include:_spf.salesforce.com include:email-od.com ~all
identrust_validate=DpxJaZlPMO+eWkLE2o63yZypgT9EGmuhNxQsV4EeJ640
identrust_validate=yvET5XdfbbxjCOE5c9Ov9mA51UoyYhiGZnZsfs7hq40P
identrust_validate=pv6GERwV0HR0Ta/5S9Bndm+kOtL7NFvMWTHQ/MCGgnn5

Certificate (current)

HydrantID Server CA O1

from 2025-04-21 to 2026-05-16

Expired 3 days ago

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://ysi.com/

present

x-frame-options

findings

missing HSTS
missing Content Security Policy
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN