rayanfilters.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-13 · ok HTTP/1.1 200 2925 ms crawled 2026-05-04

CN · 101.71.9.146 · AS4837 CHINA UNICOM China169 Backbone

Reputation 75/100 wrong cert

Classifying

HTML metadata

Title: 超窄带滤光片-拉曼滤光片-瑞研百科
Description: 长春瑞研光电科技有限公司(www.rayanfilters.com)是滤光片厂家,接受超窄带滤光片,窄带滤光片,拉曼滤光片,带通滤光片等多种样式的相关产品定制,瑞研光学是专业从事光学镀膜解决方案的创新型公司,产品已经广泛应用在科学研究,科研实验,分析仪器,荧光测试设备,环境监测设备,农业测量仪器,生化仪器,医疗分析等多领域和行业

Technology

Server: Tengine

Third-party hosts loaded (7)

img71.chem17.com×5
img69.chem17.com×3
chat.chem17.com×2
img68.chem17.com×2
img70.chem17.com×1
img78.chem17.com×1
www.chem17.com×1

Contact

Phone

0431-81976112

Address

长春市二道区东盛大街3000号上东国际3号楼13层

Registration

Registrar

Xin Net Technology Corporation

Created

2019-05-06

Updated

2025-04-29

Name servers

ns11.xincache.com
ns12.xincache.com

DNS records live

NS

ns11.xincache.com
ns12.xincache.com

CNAME

gxh.100nets.com

Certificate (current) wrong cert

R12

from 2026-04-29 to 2026-07-28

Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked over plain HTTP: http://www.rayanfilters.com/

present

content-security-policy
x-frame-options
x-content-type-options

findings

checked over plain HTTP
CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
content-security-policy: default-src * 'unsafe-inline' 'unsafe-eval' data: blob:;