Website reputation report

corewebvitals.io

Last checked 1 day ago · Point-in-time assessment

65/100Technical Safety ScoreIndependent technical assessment, not a visitor rating
Would you recommend this page? No community votes yet 0/0 Your vote is for this page in this report only—not the entire website. No account required · One vote per browser.
Captured homepage of corewebvitals.io in the current scan
Website screenshot from the current report

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● Evidence is limited

What is this website?

I am a Arjen, the PageSpeed and Core Web Vitals expert. I have a deep passion for new internet technologies that connect people together.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

65/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure95 Website Security95 Security Hygiene50 Transparency60 Reputation50 Operational Stability96
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Current report context

What changed since the last scan

  • No earlier report to compare
What this scan could verify · 5 observed, 1 unavailable
DNS observed
Registration lookup unavailable Reason: stage unavailable
Network observed
TLS observed
Website response observed
Website content observed

Unavailable and unperformed checks are not clean results. The detailed evidence below remains the source for each conclusion.

Report an inaccuracy in this report →

Independent evidence brief

What we observed about corewebvitals.io

Updated Oct 6, 2026

The latest scan examined 10 public pages on corewebvitals.io. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200.

A valid TLS certificate was observed, expiring Dec 21, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 65/100. Evidence Confidence: 70%. These measure different things.

Community reviews of corewebvitals.io

Visitor experiences are separate from the independent technical Safety Score.

No approved visitor reviews yet. Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on corewebvitals.io

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Core Web Vitals & PageSpeed Consultant | Arjen KarelI make websites fast. Permanently. Core Web Vitals and PageSpeed consultancy for companies where the standard recommendations didn't work. 17 years, 300+ sites, clients include Ade AboutWeb Core Vitals and Pagespeed consultancy Contact Web Core Vitals and Pagespeed consultancyWeb Core Vitals and Pagespeed consultancy Core Web Vitals Services | Arjen KarelFour ways to work with me on your Core Web Vitals: a power hour, an audit, a fix I build myself, or consultancy alongside your team. Every price on the page. Core Web Vitals Power Hour | Arjen KarelOne hour on your own site with a Core Web Vitals consultant. I check your field data before we talk, we find the cause together, and you get the fix in writing. Core Web Vitals Audit | Arjen KarelA Core Web Vitals audit based on your real visitor data: what's slow, why, and what to fix first, written for your developer or agency. One fixed price. WordPress, Shopify & Next.js Speed Optimization | Arjen KarelI fix the Core Web Vitals of your site myself, whatever it's built on: on a copy first, measured in your real visitor data, priced before I start. Core Web Vitals Consulting | Arjen KarelCore Web Vitals consultancy: I find what slows your site down, hand the fixes to your developers, train them where needed and keep it fast after I leave. What Are the Core Web Vitals? LCP, INP & CLS Explained (2026)Learn what the Core Web Vitals are (LCP, INP, CLS), their thresholds, how to measure them with field data vs lab data, and proven strategies to improve your scores. Learn PageSpeedTechniques for improving site speed performance. Learn how to get that perfect lighhouse score

Public page evidence

Topics and keywords observed on corewebvitals.io

12 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

coreTitle, H1, Meta description10 sampled pages
vitalsTitle, H1, Meta description10 sampled pages
core web vitalsTitle, H1, Meta description8 sampled pages
arjen karelTitle, H17 sampled pages
pagespeedTitle, H1, Meta description4 sampled pages
consultancyTitle, Meta description5 sampled pages
pagespeed consultancyTitle, Meta description3 sampled pages
vitals power hourTitle, H1, Meta description2 sampled pages
dataMeta description4 sampled pages
auditTitle, H1, Meta description2 sampled pages
fastH1, Meta description2 sampled pages
to improveH1, Meta description2 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
95/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
50/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
60/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
96/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLLocal antivirus is not enabled
Phishing.Database · exact hostnameLocal feed snapshot unavailable

Sampled scripts and pages

Resource antivirus is not enabled

0 resources checked · 1 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts1
Inline scripts3
Embedded frames0
External script hosts0

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domaincorewebvitals.io
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address104.26.4.143
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNCloudflare
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.corewebvitals.io/
Endpoint104.26.4.143
NetworkUnavailable
CDN and WAFCloudflare · Not detected
DNS surface25 records · 2 nameservers · 5 mail exchangers
Protection signals1 security headers · 1 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size59,609 bytes
HTTP check duration0 ms
Cookies observedUnavailable
Script resources1 · 0 external hosts
Frames and sampled checks0 frames · 0 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Google Trust Services, commonName=WE1
Valid fromSep 22, 2026
Valid untilDec 21, 2026
Certificate names*.corewebvitals.io · corewebvitals.io

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A104.26.4.143TTL —
A104.26.5.143TTL —
A172.67.74.47TTL —
AAAA2606:4700:20::681a:48fTTL —
AAAA2606:4700:20::681a:58fTTL —
AAAA2606:4700:20::ac43:4a2fTTL —
NSthomas.ns.cloudflare.comTTL —
NSulla.ns.cloudflare.comTTL —
MX1 aspmx.l.google.comTTL —
MX10 alt3.aspmx.l.google.comTTL —
MX10 alt4.aspmx.l.google.comTTL —
MX5 alt1.aspmx.l.google.comTTL —
MX5 alt2.aspmx.l.google.comTTL —
CAA0 issue "comodoca.com"TTL —
CAA0 issue "digicert.com; cansignhttpexchanges=yes"TTL —
CAA0 issue "letsencrypt.org"TTL —
CAA0 issue "pki.goog; cansignhttpexchanges=yes"TTL —
CAA0 issue "ssl.com"TTL —
CAA0 issuewild "comodoca.com"TTL —
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"TTL —
CAA0 issuewild "letsencrypt.org"TTL —
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"TTL —
CAA0 issuewild "ssl.com"TTL —
TXTgoogle-site-verification=ftbGztJzRKKDGlGgRI32Yssrk_hlLsoDWwHZVZsx7qMTTL —
TXTv=spf1 include:_spf.google.com include:_spfmin.seoserver.nl ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCNo matching record returned for this exact hostname

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

1 observed
strict-transport-securitypresent max-age=63072000; includeSubDomains; preload

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Cloudflare 98%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

About this website

What the site says about itself

I am a Arjen, the PageSpeed and Core Web Vitals expert. I have a deep passion for new internet technologies that connect people together.

View the site's About page ↗

This is publisher supplied information. The independent safety findings are shown separately.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Phone+31164313023Source: https://www.corewebvitals.io/
Emailinfo@corewebvitals.ioSource: https://www.corewebvitals.io/
Phone+312016420313023Source: https://www.corewebvitals.io/contact

Structured facts

Website identity & response

Public page metadata
Page titleCore Web Vitals & PageSpeed Consultant | Arjen Karel
First headingHi, I'm Arjen. I fix Core Web Vitals.
DescriptionI make websites fast. Permanently. Core Web Vitals and PageSpeed consultancy for companies where the standard recommendations didn't work. 17 years, 300+ sites, clients include Adevinta, Nestlé, eBay, Zalando, and DPG Media.
Canonical URLhttps://www.corewebvitals.io/
Final URLhttps://www.corewebvitals.io/
HTTP response200 · text/html; charset=UTF-8 · duration unavailable
Languageen
Structured typesNone observed
Page page detectedhttps://www.corewebvitals.io/servicesAbout page detectedhttps://www.corewebvitals.io/aboutContact page detectedhttps://www.corewebvitals.io/contact
1100% evidence confidence
1100% evidence confidence
en100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.cors present100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
5100% evidence confidence
2100% evidence confidence
25100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
6100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.csp present100% evidence confidence
1100% evidence confidence
63072000100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.permissions policy present100% evidence confidence

Connection path

Redirect chain

1 recorded hops
Hop 1https://www.corewebvitals.io/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
deep-radar-trace-388

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

Show change history

No meaningful changes recorded yet.

Website icon for corewebvitals.io

Visual evidence

Website screenshot

Screenshot of corewebvitals.io
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Use the current report link so visitors can verify the evidence. A badge is a transparency signal, not a paid ranking boost.

Questions about corewebvitals.io

FAQ

Still have questions? Contact us →
Is corewebvitals.io safe to visit?

The latest Safety Score is 65/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on corewebvitals.io?

External threat-provider coverage was unavailable for this scan, so malware status is unverified.

When was corewebvitals.io registered?

The registry lookup did not provide a reliable creation date in this scan.

Did corewebvitals.io have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

How does corewebvitals.io describe itself?

The website's About page describes its purpose in the report above. This is publisher-supplied information and is separate from independent security findings.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with corewebvitals.io

Community reviews are moderated and remain separate from the technical Safety Score.

Write review →