flutter.dev
Flutter - Beautiful native apps in record time

!No H1 Tag

Flutter SDK is Google's UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

No Keywords

Technical Rating

XSS attack - not protected. HTTP header "X-XSS-Protection" not found

User Interface redress attack - not protected. HTTP header "X-Frame-Options" not found

HTTP request response - 200

HTTPS request response - 200

Redirect from HTTP to HTTPS

iHTTP redirect: https://flutter.dev/

Server response time 0,67 sec

HTML load time 0,469 sec

iHTML length: 57185

A link to a favicon is specified

iNumber of IMGs: 33

!The ALT attribute is not set for all IMGs

Adapted for mobile devices. It uses the VIEWPORT tag

!W3C Validation. Number of HTML errors: 63

W3C Validation. Number of HTML warnings: 5

!Doesn't use robots.txt

!Doesn't use a sitemap

DNS MX record is available. Anti-spam DMARC and ADSP records are available

Exact physical location of Flutter.dev

iEU # Country is really world wide see http://www.iana.org.

Technical Information

iServer: Varnish

iIPv4: 151.101.65.195, 151.101.1.195

iDNS TXT Records: "flutter.dev" "google-site-verification=ynwJ9uOJaXAo0h8elDzD-ol7A9qib6IMafu8WLbb8GM"
"download.flutter.dev" "google-site-verification=AeYMn1LTlmz1OT8omXL-buaYssgGkQIrAtddIyGYAh8"
"v=spf1 ?all"
"forward-email=conduct:[email protected],security:[email protected]"
"flutter.io" "google-site-verification=I-FsC4Zyl_kUIJPQFEibfyaZ_-hcTiLxFAfL3UNlNro"
"flutter.dev" "google-site-verification=4Rvc1mRi0OUczPHAfReCQF3vpN4g0c3MhoMCfPIA4lA"
"dashboard.flutter.dev" "google-site-verification=zJs_c6I-QYsjp6txdbnViGf2jC2rt6tGIL9BLErqL2Y"
"flutter.dev" "google-site-verification=lIqguczSC2ik6Gpj63wvAeEZS5AV_1i9yz9Qlrndp-4"
"flutter.dev" "google-site-verification=pDUlDBrZwEtozkYdUC4SLVELzDmFbMP2UWsvrSAZCeg"
"flutter.dev" "google-site-verification=EZ_oZwPsj3nJyq2Wyxm_df2syuPDWZWXcmMnIqSJmoc"

iDNS Mail Records: 10 mx1.forwardemail.net., 20 mx2.forwardemail.net.

iDMARC Mail Anti Spam Records: 151.101.1.195, 151.101.65.195

iAuthor Domain Signing Practices Mail Records: 151.101.65.195, 151.101.1.195

iRaw IPv4 Information 151.101.65.195

[Querying whois.ripe.net]
[whois.ripe.net]
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '151.101.0.0 - 151.105.255.255'

% No abuse contact registered for 151.101.0.0 - 151.105.255.255

inetnum:        151.101.0.0 - 151.105.255.255
netname:        NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK
descr:          IPv4 address block not managed by the RIPE NCC
remarks:        ------------------------------------------------------
remarks:
remarks:        For registration information,
remarks:        you can consult the following sources:
remarks:
remarks:        IANA
remarks:        http://www.iana.org/assignments/ipv4-address-space
remarks:        http://www.iana.org/assignments/iana-ipv4-special-registry
remarks:        http://www.iana.org/assignments/ipv4-recovered-address-space
remarks:
remarks:        AFRINIC (Africa)
remarks:        http://www.afrinic.net/ whois.afrinic.net
remarks:
remarks:        APNIC (Asia Pacific)
remarks:        http://www.apnic.net/ whois.apnic.net
remarks:
remarks:        ARIN (Northern America)
remarks:        http://www.arin.net/ whois.arin.net
remarks:
remarks:        LACNIC (Latin America and the Carribean)
remarks:        http://www.lacnic.net/ whois.lacnic.net
remarks:
remarks:        ------------------------------------------------------
country:        EU # Country is really world wide
admin-c:        IANA1-RIPE
tech-c:         IANA1-RIPE
status:         ALLOCATED UNSPECIFIED
mnt-by:         RIPE-NCC-HM-MNT
created:        2019-01-07T10:46:38Z
last-modified:  2019-01-07T10:46:38Z
source:         RIPE

role:           Internet Assigned Numbers Authority
address:        see http://www.iana.org.
admin-c:        IANA1-RIPE
tech-c:         IANA1-RIPE
nic-hdl:        IANA1-RIPE
remarks:        For more information on IANA services
remarks:        go to IANA web site at http://www.iana.org.
mnt-by:         RIPE-NCC-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:31:27Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.101 (WAGYU)

iRaw DNS Information

A: 151.101.65.195
A: 151.101.1.195

TXT: "flutter.dev" "google-site-verification=ynwJ9uOJaXAo0h8elDzD-ol7A9qib6IMafu8WLbb8GM"
TXT: "download.flutter.dev" "google-site-verification=AeYMn1LTlmz1OT8omXL-buaYssgGkQIrAtddIyGYAh8"
TXT: "v=spf1 ?all"
TXT: "forward-email=conduct:[email protected],security:[email protected]"
TXT: "flutter.io" "google-site-verification=I-FsC4Zyl_kUIJPQFEibfyaZ_-hcTiLxFAfL3UNlNro"
TXT: "flutter.dev" "google-site-verification=4Rvc1mRi0OUczPHAfReCQF3vpN4g0c3MhoMCfPIA4lA"
TXT: "dashboard.flutter.dev" "google-site-verification=zJs_c6I-QYsjp6txdbnViGf2jC2rt6tGIL9BLErqL2Y"
TXT: "flutter.dev" "google-site-verification=lIqguczSC2ik6Gpj63wvAeEZS5AV_1i9yz9Qlrndp-4"
TXT: "flutter.dev" "google-site-verification=pDUlDBrZwEtozkYdUC4SLVELzDmFbMP2UWsvrSAZCeg"
TXT: "flutter.dev" "google-site-verification=EZ_oZwPsj3nJyq2Wyxm_df2syuPDWZWXcmMnIqSJmoc"

MX: 10 mx1.forwardemail.net.
MX: 20 mx2.forwardemail.net.

DMARC: 151.101.1.195
DMARC: 151.101.65.195

ADSP: 151.101.65.195
ADSP: 151.101.1.195