openslo.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 1654 ms crawled 2026-05-10

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: OpenSLO
Description: Open Service Level Objective (SLO) Specification. Designed to make SLOs ergonomic to modern developer Git workflow.
Language: en-us
Generator: Hugo 0.124.1

Open Graph

url: https://openslo.github.io/
title: OpenSLO

Technology

CDN: Fastly
Server: GitHub.com
CMS: Hugo

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (4)

cdnjs.cloudflare.com×2
fonts.googleapis.com×1
unpkg.com×1
www.googletagmanager.com×1

Social

Registration

Registrar

Squarespace Domains II LLC

Created

2021-04-30

Expires

2027-04-30 345 days left

Updated

2026-04-15

Name servers

ns-1175.awsdns-18.org
ns-142.awsdns-17.com
ns-1537.awsdns-00.co.uk
ns-775.awsdns-32.net

DNS records live

NS

ns-1175.awsdns-18.org
ns-142.awsdns-17.com
ns-1537.awsdns-00.co.uk
ns-775.awsdns-32.net

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

google-site-verification=8GO68YXnjOxAk-gJil35CpSooqGrwtOsoFaB7uj1dCE

Email authentication weak

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

not published

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqcADe12ZV6O49ALS7xdbfUYhKvhdvcXIT5LCA2skTiPF//sWMb8ySQcEXjB8fhCbJKcvVHwBKwPrXI…

selectors probed

Certificate (current)

R13

from 2026-04-21 to 2026-07-20

Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://openslo.com/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=31556952

Links to (4)

Linked from (1)

nobl9.com×2