qiita.com

.com toplist crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1957 ms crawled 2026-05-18

US · 18.165.140.97 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Qiita
Description: Qiitaは、エンジニアに関する知識を記録・共有するためのサービスです。プログラミングに関するTips、ノウハウ、メモを簡単に記録 & 公開することができます。
Language: ja
Canonical: https://qiita.com/

Open Graph

url: https://qiita.com/
title: エンジニアに関する知識を記録・共有するためのサービス - Qiita
site name: Qiita
description: Qiitaは、エンジニアに関する知識を記録・共有するためのサービスです。プログラミングに関するTips、ノウハウ、メモを簡単に記録 & 公開することができます。

Technology

CDN: Amazon CloudFront
Server: nginx

Ads

Google Ads (DoubleClick)

Fonts

Google Fonts

Third-party hosts loaded (8)

qiita-user-profile-images.imgix.net×40
qiita-tag-images.imgix.net×10
qiita-official-contents.imgix.net×4
cdnjs.cloudflare.com×2
fam.adingo.jp×2
www.googletagservices.com×2
fonts.googleapis.com×1
securepubads.g.doubleclick.net×1

Social

Registration

Registrar

Amazon Registrar, Inc.

Created

2011-07-18

Expires

2026-07-18 59 days left

Updated

2026-05-13

Name servers

ns-1049.awsdns-03.org
ns-171.awsdns-21.com
ns-1956.awsdns-52.co.uk
ns-772.awsdns-32.net

DNS records live

NS

ns-1049.awsdns-03.org
ns-171.awsdns-21.com
ns-1956.awsdns-52.co.uk
ns-772.awsdns-32.net

MX

Show 7 MX records

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx2.googlemail.com
30 aspmx3.googlemail.com
30 aspmx4.googlemail.com
30 aspmx5.googlemail.com

TXT

Show 4 TXT records

pardot859913=4e67330c615e435955fd1e1973811b368a84de7712bebe791483228997d47650
tollbit-domain-verification=ab1c17a1ab4e8ab035fb8a8604e95a061f65f5fd0528c53a36a71be34a07c655
google-site-verification=OCwPip5vYMz3KMtOVXGDy8MVETsPPKp8zcR5gxcP0mk
pardot859913=459e91b4646f79a9dc3bb58970676deab274ab5fb48dbb4a2ae1f01950a469f5

Email authentication partial

SPF

v=spf1 include:_spf.google.com include:amazonses.com include:servers.mcsv.net include:mail.zendesk.com include:aspmx.pardot.com include:spf.form.run ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc-reports@qiita.com

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCN3nJ6ZfhDIZRQvZiAzcaabHXTTT5a4zW9o39smAUTmsZL3IDW72V9Vb2WnrSqUlDDMg7BRabkzCKPIgexVJ…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…

selectors probed

Certificate (current)

Amazon RSA 2048 M03

from 2025-09-03 to 2026-10-02

Expires in 135 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://qiita.com/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

short HSTS max-age
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=2592000