regexr.com


Tags Whois Backlink & Rankings Speed Safety Headers Similar Sites Keywords H Tags
Tags Whois Rank Speed Safety Headers Similar Sites Keywords H Tags

regexr.com Website Info

regexr.com (Regexr.com is an online platform that allows users to create, test, and learn regular expressions interactively. It provides a user-friendly interface with real-time testing, syntax highlighting, and an extensive library of regex examples, making it a valuable resource for developers and learners alike.) was registered first at 2008-03-27 16:28:00. DNS looks Active and website looks Accessable. regexr.com Website SEMRush Rank is 42,897. regexr.com seems popular on facebook. According to Google, website speed score is 92/100 and AVERAGE. Website looks safe for children. We detected the website language as id.
regexr.com


regexr.com Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
https://regexr.com
Title:
Regexr - Learn, Build, & Test Regular Expressions
Description:
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
Categories :
Business, Information Technology
External Links:
2
Internal Links:
0
Mobile Friendly?:
No
FIXED_WIDTH_VIEWPORT
TAP_TARGETS_TOO_CLOSE
Canonical URL:
[Not Set]
Language:
id
XML Sitemap:
✓ Yes
robots.txt:
✗ No
Favicon:
✓ Yes

regexr.com Domain & Whois Details

Refresh
Domain Create Date:
2008-03-27 16:28:00
Domain Age:
17 years, 3 months, 6 days
Domain Expire Date:
2026-03-27T16:28:00Z
Domain Last Update Date:
2026-03-27T16:28:00Z
Domain Owner:
http://www.namecheap.com - NameCheap, Inc. -
Server Type:
cloudflare
Nameservers:
DAKOTA.NS.CLOUDFLARE.COM - KARSYN.NS.CLOUDFLARE.COM -
Hosting Location:
Country:Canada, City:Toronto, Isp:Cloudflare, Inc., Org:Cloudflare, Inc.
IP:
172.67.191.157 , 104.21.76.91

regexr.com Backlinks & Rankings

SEMRush Rank:
42,897
Semrush Rank is a proprietary score that lets you find the domains that are getting the most traffic from organic search.
SEMRush Traffic:
47,310
Number of users expected to visit the website during the following month.
SEMRush Costs:
2,944
Estimated price of organic keywords in Google AdWords.
SEMRush URL Links:
197,001
Number of links to URL according to SemRush.
SEMRush Website Links:
541,573
Number of links to the website according to SemRush.
SEMRush Domain Links:
555,186
Number of links to SemRush Domain.
SEMRush Keywords In Top 100:
4,454
Number of keywords where site in Google's organic search top 100.

regexr.com Social Media

Facebook Comments:
2,297
Facebook Shares:
3,855
Facebook Reactions:
3,201

regexr.com Website Speed (Desktop)

Refresh
Overall Category:
AVERAGE
The human readable speed "category"
Speed Index:
92
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0.22 (AVERAGE)
The Cumulative Layout Shift (CLS) metric measures how much unexpected layout shifts affect the user experience on a page. These layout shifts occur when content moves around without prior user input. CLS
Time to First Byte (TTFB):
0.96 s (AVERAGE)
TTFB (time to first byte) is the number of milliseconds it takes for a client’s browser to receive the first byte of the response from the web server. Usually, TTFB can be improved with faster hosting and server optimizations. TTFB
First Input Delay (FID):
3 ms (FAST)
First Input Delay (FID) measures the time from when the user interacts with your site for the first time (click a link, tap on a button, etc.) to the time when the browser is able to respond to that interaction. Google recommends keeping FID below 100ms for a good user experience. FID
First Contentful Paint (FCP):
1.396 s (FAST)
FCP (First Contentful Paint) measures the time from a user’s navigation to when the browser renders the first bit of content from the DOM. In other words, FCP marks the time at which the first text or image is painted for the user. According to PageSpeed Insights, FCP should occur in under 2 seconds. FCP
Interaction to Next Paint (INP):
52 ms (FAST)
Interaction to Next Paint (INP) is a web performance metric that measures user interface responsiveness – how quickly a website responds to user interactions like clicks or key presses. Specifically, it measures how much time elapses between a user interaction like a click or key press and the next time the user sees a visual update on the page. INP
Largest Contentful Paint (LCP):
1.759 s (FAST)
Largest Contentful Paint (LCP) is a metric that measures when the largest content in the viewport is rendered. It is used to measure how long it takes for the main content of your webpage to appear on the screen. Everything below 2.5s is considered good LCP time by PageSpeed Insights. LCP
Total Size:
306 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
438 ms
Initial server response time. Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).
Final Url:
https://regexr.com/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
5/21/2023 1:12:23 PM
The last time we checked this website.
Site Speed Check(Full)

regexr.com HTML Resources

Type
Request Count
Size
Total
20
306 KB
Script
6
204 KB
Third-party
10
148 KB
Font
3
43 KB
Image
2
25 KB
Document
1
13 KB
Stylesheet
2
12 KB
Other
6
6 KB
Media
0
0 KB

regexr.com Website Safety

Refresh
Last Check Date:
2/27/2023 11:06:06 PM
Fortiguard:
Information Technology
Mcafee Category:
Business
OpenDNS:
notdecidedyet
Cloudflare DNS:
OK
MyWot Child Safety:
95

regexr.com HTTP Headers

Refresh
alt-svc :
h3=":443"; ma=86400, h3-29=":443"; ma=86400
Cache-Control :
no-store, no-cache, must-revalidate
CF-Cache-Status :
DYNAMIC
CF-RAY :
7c64fd7ebd66335a-EWR
Connection :
keep-alive
Content-Type :
text/html; charset=UTF-8
Date :
Fri, 12 May 2023 19:15:24 GMT
expires :
Thu, 19 Nov 1981 08:52:00 GMT
NEL :
{"success_fraction":0,"report_to":"cf-nel","max_ag
Pragma :
no-cache
Report-To :
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.c
Server :
cloudflare
Set-Cookie :
session=ebf2b8e8f99829ff7c25dec57864ef48; expires=
Transfer-Encoding :
chunked
Vary :
Accept-Encoding,User-Agent


regexr.com W3C HTML Validation Check Now

Last Check Date:
5/27/2023 12:00:00 AM
Errors:
14
Warnings:
0
Info:
15
Check Live:
Check regexr.com HTML Errors

regexr.com Similar Sites

Website
Title
Rank
regex101.com regex101.com
Regex101 - Regex Tester & Debugger with Syntax Highlighting
18,923
regextester.com regextester.com
Regex Tester and Debugger Online - Javascript, PCRE, PHP
275,856
regular-expressions.info regular-expressions.info
Regular-Expressions.info - The comprehensive resource for regex tutorials and references
196,167
regexpal.com regexpal.com
RegExr: Learn, Build, & Test Regular Expressions
1,313,079
rexegg.com rexegg.com
Regex Tutorial—From Regex 101 to Advanced Regex
264,645
Top regexr.com Alternatives

regexr.com Site Keywords

debug regex
learn regex
pattern matching
regex
regex builder
regex generator
regex online
regex tester
regular expression
regular expressions
Test RegEx

regexr.com Site H Tags

Check Now
h1
Menu
h1
Expression
h1
Tools
h1
RegEx Engine
h1
Expression Flags
h1
Sign In
h1
Sign Out

regexr.com Sites with Same Names

Website
Title
Rank
regexr.tech regexr.tech
RegExr | Twitter, Instagram, Twitch | Linktree
41,513,374

What is SitesDB?

SitesDB is one of the largest databases of websites and domain names on the internet, with over 40 million entries and growing. For more than 12 years, we've been manually verifying and updating website and domain details, combining human expertise with AI-powered systems to ensure the accuracy and relevance of our data.

At SitesDB, we provide in-depth technical and useful information about websites and domains, including:

  • Website meta tags
  • Domain & WHOIS data
  • General backlink and ranking statistics
  • Social media engagement stats
  • Root page speed insights
  • Website content and HTML resources
  • Website safety and security details, sourced from multiple trusted security providers
  • HTTP headers analysis
  • HTML validation reports
  • Lists of similar websites and competitors
  • Website keyword analysis, including top traffic-driving keywords
  • Heading structure (H tags) breakdown
  • Domain variations across different TLDs (Top-Level Domains)

In addition to this data, SitesDB offers a suite of website analysis tools — including Chrome CRUX, Google Lighthouse, and our own AI-enhanced algorithms — to help identify alternative websites, direct competitors, and similar sites, all continuously refined through both automated systems and human review.