Website reputation report

dayprep.co

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

62/100Technical 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 dayprep.co in the current scan
Website screenshot from the current report

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● Evidence is limited

What is this website?

정처기·SQLD·산업안전기사·컴활·JLPT 등 자격증 시험 학습 앱. 더 필요한 문제만 골라 푸는 데이프렙에서 내 시험을 찾아보세요.

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

62/100Safety 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 Infrastructure88 Website Security95 Security Hygiene50 Transparency47 Reputation50 Operational Stability84
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 dayprep.co

Updated Oct 5, 2026

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

Purpose and visible content

On its homepage, the site says: 정처기·SQLD·산업안전기사·컴활·JLPT 등 자격증 시험 학습 앱. 더 필요한 문제만 골라 푸는 데이프렙에서 내 시험을 찾아보세요.

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 in about 2000 ms.

A valid TLS certificate was observed, expiring Dec 7, 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: 62/100. Evidence Confidence: 70%. These measure different things.

Community reviews of dayprep.co

No approved reviews yet ☆☆☆☆☆

Visitor experiences are separate from the independent technical Safety Score.

Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on dayprep.co

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.

데이프렙 — 더 필요한 문제만 푸는 쪽으로정처기·SQLD·산업안전기사·컴활·JLPT 등 자격증 시험 학습 앱. 더 필요한 문제만 골라 푸는 데이프렙에서 내 시험을 찾아보세요. 정처기 - 정보처리기사 합격 도우미FSRS 간격반복 학습으로 정보처리기사 시험을 효율적으로 준비하세요. FSRS 알고리즘, 약점 히트맵, 실전 모의고사를 제공합니다. 정처기 실기 앱 — 정보처리기사 실기 학습 도구단답·결과값·빈칸·코드 작성 유형과 FSRS 복습으로 정보처리기사 실기를 준비하세요. 컴활메이트 1급 · 컴활 1급 필기 앱 — FSRS 기반 합격 도우미컴퓨터활용능력 1급 필기 학습 앱. 2,080개 자체 제작 문제, FSRS 간격반복, 3과목 약점 히트맵과 60문항 60분 실전 모의고사로 합격을 준비하세요. 학점은행제 14학점. 컴활메이트 · 컴활 2급 필기 앱 — FSRS 기반 컴퓨터활용능력 2급 합격 도우미컴활 2급 필기 학습 앱. FSRS 과학적 복습 알고리즘으로 망각 곡선을 이기고, 자체 제작 문제와 2과목 약점 히트맵, 40문항 40분 실전 모의고사로 컴퓨터활용능력 2급 필기 준비를 끝내세요. 학점은행제 6학점. SQLmate — SQLD 간격 반복 학습FSRS 간격반복과 약점 히트맵, 50문항 모의고사로 SQLD 시험을 준비하세요. 에이디 · ADsP 데이터분석 준전문가 합격 도우미FSRS 간격반복 학습으로 ADsP 데이터분석 준전문가 시험을 효율적으로 준비하세요. FSRS 알고리즘, 약점 히트맵, 실전 모의고사를 제공합니다. 사무자동화산업기사 필기 국가시험 학습 앱 — FSRS 망각 곡선으로 과목별 약점 자동 반복사무자동화산업기사 필기 국가시험 대비 모바일 학습 앱. FSRS 망각 곡선으로 과목별 약점을 자동 복습합니다. 과목 약점 히트맵과 60문항 시험 구조를 제공합니다. 빅데이터분석기사 국가시험 학습 앱 — FSRS 망각 곡선으로 과목별 약점 자동 반복빅데이터분석기사 국가시험 대비 모바일 학습 앱. FSRS 망각 곡선으로 과목별 약점을 자동 복습합니다. 과목 약점 히트맵 + 1문항 1분 실전 모의고사. 사회조사분석사 2급 국가시험 학습 앱 — FSRS 망각 곡선으로 과목별 약점 자동 반복사회조사분석사 2급 국가시험 대비 모바일 학습 앱. FSRS 망각 곡선으로 과목별 약점을 자동 복습합니다. 과목 약점 히트맵 + 1문항 1분 실전 모의고사.

Public page evidence

Topics and keywords observed on dayprep.co

12 phrases

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

fsrsTitle, Meta description9 sampled pages
fsrs 망각 곡선으로Title, Meta description3 sampled pages
학습 fsrsTitle, Meta description4 sampled pages
약점 히트맵Meta description6 sampled pages
곡선으로 과목별Title, Meta description3 sampled pages
실전 모의고사H1, Meta description5 sampled pages
합격 도우미Title4 sampled pages
과목 약점Meta description5 sampled pages
국가시험Title, Meta description3 sampled pages
곡선이 챕터별 약점을H13 sampled pages
기록에 맞춘 복습과H13 sampled pages
약점을 알아서 반복합니다H13 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%
88/100

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%
47/100

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%
84/100

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 · 0 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 scripts0
Inline scripts5
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 domaindayprep.co
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address66.33.60.67
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
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://dayprep.co/
Endpoint66.33.60.67
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface9 records · 2 nameservers · 3 mail exchangers
Protection signals1 security headers · 2 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 size95,953 bytes
HTTP check duration2,000 ms
Cookies observedUnavailable
Script resources0 · 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=Let's Encrypt, commonName=YR2
Valid fromSep 8, 2026
Valid untilDec 7, 2026
Certificate namesdayprep.co

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.

A66.33.60.67TTL —
A76.76.21.98TTL —
NSimani.ns.cloudflare.comTTL —
NSjasper.ns.cloudflare.comTTL —
MX5 route1.mx.cloudflare.netTTL —
MX68 route2.mx.cloudflare.netTTL —
MX71 route3.mx.cloudflare.netTTL —
TXTgoogle-site-verification=WMjUznD7TepfBFnkKt0RAxZPSr8kMZf9uSGNSCBZQnkTTL —
TXTv=spf1 include:_spf.mx.cloudflare.net ~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

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

Bootstrap 80% Tailwind CSS 72%

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.

Publisher supplied

Public contact details

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

Emailcontact@daylab.devSource: https://dayprep.co/
Phone05050077703Source: https://dayprep.co/jeongcheogi

Structured facts

Website identity & response

Public page metadata
Page title데이프렙 — 더 필요한 문제만 푸는 쪽으로
First heading다음 시험, 누군가는더 똑똑하게 준비하고 있어요
Description정처기·SQLD·산업안전기사·컴활·JLPT 등 자격증 시험 학습 앱. 더 필요한 문제만 골라 푸는 데이프렙에서 내 시험을 찾아보세요.
Canonical URLhttps://dayprep.co/
Final URLhttps://dayprep.co/
HTTP response200 · text/html; charset=utf-8 · 2000 ms
Languageko
Structured typesItemList · ListItem · Organization · WebSite
Page page detectedhttps://dayprep.co/jeongcheogi
Local headers.permissions policy present100% evidence confidence
ko100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
3100% evidence confidence
2100% evidence confidence
9100% evidence confidence
2100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.hsts include subdomains100% evidence confidence
63072000100% evidence confidence
Local headers.hsts preload100% evidence confidence
1100% evidence confidence

Connection path

Redirect chain

0 recorded hops

No redirect hop was recorded for the sampled homepage.

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
quiet-beacon-arc-497

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 dayprep.co

Visual evidence

Website screenshot

Screenshot of dayprep.co
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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Questions about dayprep.co

FAQ

Still have questions? Contact us →
Is dayprep.co safe to visit?

The latest Safety Score is 62/100 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 dayprep.co?

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

When was dayprep.co registered?

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

Did dayprep.co 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.

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 dayprep.co

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

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