Some images webp version not being created

If EWWW IO won’t generate a WebP version of an image, it’s usually because the WebP encoder has created a larger image. The WebP format struggles to compress some types of images, so that’s one of the reasons EWWW IO uses conditional WebP delivery (by default) instead of forcing everything to be WebP.

One other possibility is that EWWW IO is using an inferior WebP encoder. The default is to use the cwebp utility bundled with the plugin, but if your server doesn’t have exec() enabled, EWWW IO has to use one of the PHP libraries: GD or ImageMagick (imagick). GD is the worst option of the two, so if you don’t have the imagick extension, I’d see if you can enable that.

We can verify which WebP encoder is being used by looking at the System Information from the EWWW IO support tab. You can post it here in a code bock, via pastebin.com, or send it via email at https://ewww.io/contact-us/

Thanks. Site health reports I am using
Active editor EWWWIO_Imagick_Editor
ImageMagick version number 1690

Support log below. If it cant produce a webp of a certain image then thats fine, its just that I was hardcoding it into my css file as a background image for optimisation purposes.

checking active plugins
EIO_Base::content_url()
upload_url: https://example.co.uk/wp-content/uploads/
EIO_Base::__construct()
plugin (resource) content_url: https://example.co.uk/wp-content/ewww/
plugin (resource) content_dir: /var/www/html/wp-content/ewww/
home url: https://example.co.uk/
relative home url: //example.co.uk/
home domain: example.co.uk
site/upload url: https://example.co.uk
site/upload domain: example.co.uk
EIO_Picture_Webp::__construct()
request uri is EWWW IO settings
is_admin
ewww_image_optimizer_admin_init()
EIO_Base::content_url()
upload_url: https://example.co.uk/wp-content/uploads/
EIO_Base::__construct()
plugin (resource) content_url: https://example.co.uk/wp-content/ewww/
plugin (resource) content_dir: /var/www/html/wp-content/ewww/
home url: https://example.co.uk/
relative home url: //example.co.uk/
home domain: example.co.uk
site/upload url: https://example.co.uk
site/upload domain: example.co.uk
ewww_image_optimizer_cloud_init()
ewww_image_optimizer_upgrade()
ewww_image_optimizer_exec_init()
ewww_image_optimizer_cron_setup()
EWWWIO_Tracking::schedule_send()
ewww_image_optimizer_tool_init()
ewww_image_optimizer_install_tools()
Checking/Installing tools in /var/www/html/wp-content/ewww/
wp-content/ewww permissions: 0755
ewww_image_optimizer_install_paths()
CPU architecture: x86_64
generated paths:
/var/www/html/wp-content/plugins/ewww-image-optimizer/binaries/jpegtran-linux
/var/www/html/wp-content/plugins/ewww-image-optimizer/binaries/optipng-linux
/var/www/html/wp-content/plugins/ewww-image-optimizer/binaries/gifsicle-linux
/var/www/html/wp-content/plugins/ewww-image-optimizer/binaries/pngquant-linux
/var/www/html/wp-content/plugins/ewww-image-optimizer/binaries/cwebp-linux
/var/www/html/wp-content/ewww/jpegtran
/var/www/html/wp-content/ewww/optipng
/var/www/html/wp-content/ewww/gifsicle
/var/www/html/wp-content/ewww/pngquant
/var/www/html/wp-content/ewww/cwebp
ewww_image_optimizer_skip_tools()
enabled: jpegtran
enabled: optipng
enabled: gifsicle
enabled: webp
Linux/UNIX style OS, checking permissions
ewww_image_optimizer_check_permissions()
permissions for /var/www/html/wp-content/ewww/jpegtran: 0755
permissions ok
ewww_image_optimizer_check_permissions()
permissions for /var/www/html/wp-content/ewww/gifsicle: 0755
permissions ok
ewww_image_optimizer_check_permissions()
permissions for /var/www/html/wp-content/ewww/optipng: 0755
permissions ok
ewww_image_optimizer_check_permissions()
permissions for /var/www/html/wp-content/ewww/cwebp: 0755
permissions ok
ewww_image_optimizer_settings_script()
ewww_image_optimizer_bulk_script()
ewww_image_optimizer_tool_script()
ewww_image_optimizer_webp_script()
ewww_image_optimizer_notice_utils()
ewww_image_optimizer_exec_check()
ewww_image_optimizer_skip_tools()
enabled: jpegtran
enabled: optipng
enabled: gifsicle
enabled: webp
ewww_image_optimizer_path_check()
ewww_image_optimizer_find_nix_binary()
found /var/www/html/wp-content/ewww/jpegtran, testing...
ewww_image_optimizer_md5check()
/var/www/html/wp-content/ewww/jpegtran: c0a44f6f16ddc78d8d027ffd3e09c512d637876833c5ffaaf5b1e7acd5ce3cda
checksum verified, binary is intact
ewww_image_optimizer_mimetype()
testing mimetype: /var/www/html/wp-content/ewww/jpegtran
7f454c46
ewwwio type: application/x-executable
ewww_image_optimizer_tool_found()
testing case: j at /var/www/html/wp-content/ewww/jpegtran
/var/www/html/wp-content/ewww/jpegtran: Independent JPEG Group's JPEGTRAN, version 9d 12-Jan-2020
optimizer found
defining EWWW_IMAGE_OPTIMIZER_JPEGTRAN
ewww_image_optimizer_find_nix_binary()
found /var/www/html/wp-content/ewww/optipng, testing...
ewww_image_optimizer_md5check()
/var/www/html/wp-content/ewww/optipng: 4404076a4f9119d4dfbb7acb00eb65345e804186a019c7136d8f8e87fb0cb997
checksum verified, binary is intact
ewww_image_optimizer_mimetype()
testing mimetype: /var/www/html/wp-content/ewww/optipng
7f454c46
ewwwio type: application/x-executable
ewww_image_optimizer_tool_found()
testing case: o at /var/www/html/wp-content/ewww/optipng
/var/www/html/wp-content/ewww/optipng: OptiPNG version 0.7.7
optimizer found
defining EWWW_IMAGE_OPTIMIZER_OPTIPNG
ewww_image_optimizer_find_nix_binary()
found /var/www/html/wp-content/ewww/gifsicle, testing...
ewww_image_optimizer_md5check()
/var/www/html/wp-content/ewww/gifsicle: 566f058b2043c4f3c8c049b0507bfa78dcb33dac52b132cade5f67bbb62d91e4
checksum verified, binary is intact
ewww_image_optimizer_mimetype()
testing mimetype: /var/www/html/wp-content/ewww/gifsicle
7f454c46
ewwwio type: application/x-executable
ewww_image_optimizer_tool_found()
testing case: g at /var/www/html/wp-content/ewww/gifsicle
/var/www/html/wp-content/ewww/gifsicle: LCDF Gifsicle 1.91
optimizer found
defining EWWW_IMAGE_OPTIMIZER_GIFSICLE
ewww_image_optimizer_find_nix_binary()
found /var/www/html/wp-content/ewww/cwebp, testing...
ewww_image_optimizer_md5check()
/var/www/html/wp-content/ewww/cwebp: 5fec3397c56b74b8a8ac8c9bac99dc11d40f9528a6c05e4108f1cd65d5a0a4fc
checksum verified, binary is intact
ewww_image_optimizer_mimetype()
testing mimetype: /var/www/html/wp-content/ewww/cwebp
7f454c46
ewwwio type: application/x-executable
ewww_image_optimizer_tool_found()
testing case: w at /var/www/html/wp-content/ewww/cwebp
/var/www/html/wp-content/ewww/cwebp: 1.2.0
optimizer found
defining EWWW_IMAGE_OPTIMIZER_CWEBP
using: /var/www/html/wp-content/ewww/jpegtran
using: /var/www/html/wp-content/ewww/optipng
using: /var/www/html/wp-content/ewww/gifsicle
using: /var/www/html/wp-content/ewww/cwebp
defining EWWW_IMAGE_OPTIMIZER_PNGOUT
defining EWWW_IMAGE_OPTIMIZER_PNGQUANT
defining EWWW_IMAGE_OPTIMIZER_SVGCLEANER
ewww_image_optimizer_options()
ewww_image_optimizer_savings()
querying savings for single site
table name is wp_ewwwio_images
savings query took 0.013947010040283 seconds
total original size: 17370144
total current(opt) size: 15805123
savings found: 1565021
www-data
EWWW IO version: 660.0
WP version: 6.0
PHP version: 70421
libxml version: 20910
core plugin
ABSPATH: /var/www/html/
WP_CONTENT_DIR: /var/www/html/wp-content
EWWWIO_CONTENT_DIR: /var/www/html/wp-content/ewww/
home url (Site URL): https://example.co.uk
site url (WordPress URL): https://example.co.uk
wp_upload_dir (baseurl): https://example.co.uk/wp-content/uploads
wp_upload_dir (basedir): /var/www/html/wp-content/uploads
content_width:
registered stream wrappers: https,ftps,compress.zlib,compress.bzip2,php,file,glob,data,http,ftp,phar,zip
not external cache
ewww_image_optimizer_gd_support()
GD found, supports:
GD Version: bundled (2.1.0 compatible)
FreeType Support: 1
FreeType Linkage: with freetype
GIF Read Support: 1
GIF Create Support: 1
JPEG Support: 1
PNG Support: 1
WBMP Support: 1
XPM Support: 1
XBM Support: 1
WebP Support: 1
BMP Support: 1
TGA Read Support: 1
JIS-mapped Japanese Font Support:
ewww_image_optimizer_gmagick_support()
ewww_image_optimizer_imagick_support()
3FR,3G2,3GP,AAI,AI,ART,ARW,AVI,AVS,BGR,BGRA,BGRO,BIE,BMP,BMP2,BMP3,BRF,CAL,CALS,CANVAS,CAPTION,CIN,CIP,CLIP,CMYK,CMYKA,CR2,CRW,CUR,CUT,DATA,DCM,DCR,DCX,DDS,DFONT,DNG,DPX,DXT1,DXT5,EPDF,EPI,EPS,EPS2,EPS3,EPSF,EPSI,EPT,EPT2,EPT3,ERF,FAX,FILE,FITS,FRACTAL,FTP,FTS,G3,G4,GIF,GIF87,GRADIENT,GRAY,GRAYA,GROUP4,H,HALD,HDR,HISTOGRAM,HRZ,HTM,HTML,HTTP,HTTPS,ICB,ICO,ICON,IIQ,INFO,INLINE,IPL,ISOBRL,ISOBRL6,JBG,JBIG,JNG,JNX,JPE,JPEG,JPG,JPS,JSON,K25,KDC,LABEL,M2V,M4V,MAC,MAGICK,MAP,MASK,MAT,MATTE,MEF,MIFF,MKV,MNG,MONO,MOV,MP4,MPC,MPEG,MPG,MRW,MSL,MTV,MVG,NEF,NRW,NULL,ORF,OTB,OTF,PAL,PALM,PAM,PATTERN,PBM,PCD,PCDS,PCL,PCT,PCX,PDB,PDF,PDFA,PEF,PES,PFA,PFB,PFM,PGM,PGX,PICON,PICT,PIX,PJPEG,PLASMA,PNG,PNG00,PNG24,PNG32,PNG48,PNG64,PNG8,PNM,PPM,PREVIEW,PS,PS2,PS3,PSB,PSD,PTIF,PWP,RADIAL-GRADIENT,RAF,RAS,RAW,RGB,RGBA,RGBO,RGF,RLA,RLE,RMF,RW2,SCR,SCT,SFW,SGI,SHTML,SIX,SIXEL,SPARSE-COLOR,SR2,SRF,STEGANO,SUN,TEXT,TGA,THUMBNAIL,TIFF,TIFF64,TILE,TIM,TTC,TTF,TXT,UBRL,UBRL6,UIL,UYVY,VDA,VICAR,VID,VIFF,VIPS,VST,WBMP,WEBP,WMV,WPG,X,X3F,XBM,XC,XCF,XPM,XPS,XV,XWD,YCbCr,YCbCrA,YUV
ewww_image_optimizer_find_nix_binary()
ewww_image_optimizer_tool_found()
testing case: n at /usr/bin/nice
/usr/bin/nice: 0
nice found
454 images have been optimized
automatic compression enabled
remove metadata: on
jpg level: 10
png level: 10
gif level: 10
pdf level: 0
svg level: 0
bulk delay:
backup mode: off
cloudinary upload: off
ExactDN enabled: off
ExactDN all the things: on
ExactDN lossy: 0
ExactDN resize existing: off
ExactDN attachment queries: on
Easy IO exclusions:

add missing dimensions: off
lazy load: off
ewwwio_other_lazy_detected()
Autoptimize lazy detected
LL autoscale: on
LQIP: off
S(VG)IIP: off
external CSS background (all things):
LL exclusions:

optipng level: 2
pngout disabled: yes
pngout level: 2
svgcleaner disabled: yes
ewww_image_optimizer_jpg_quality()
configured quality: 82
ewww_image_optimizer_jpg_quality()
effective quality: 82
ewww_image_optimizer_webp_quality()
effective WebP quality: 75
parallel optimization: off
background optimization: on
scheduled optimization: off
include media library: off
include originals: off
folders to optimize:

folders to ignore:

skip images smaller than: bytes
skip PNG images larger than: bytes
exclude originals from lossy: off
exclude originals from metadata removal: off
use system binaries: no
resize detection: off
max media dimensions: 1920 x 1920
max other dimensions: x
resize existing images: on
resize existing (non-media) images: off
ewww_image_optimizer_get_image_sizes()
sizes: thumbnail
medium
medium_large
large
1536x1536
2048x2048
Array
(
[thumbnail] => Array
(
[width] => 150
[height] => 150
[crop] => 1
)
[medium] => Array
(
[width] => 300
[height] => 300
[crop] =>
)
[medium_large] => Array
(
[width] => 768
[height] => 9999
[crop] =>
)
[large] => Array
(
[width] => 1024
[height] => 1024
[crop] =>
)
[1536x1536] => Array
(
[width] => 1536
[height] => 1536
[crop] =>
)
[2048x2048] => Array
(
[width] => 2048
[height] => 2048
[crop] =>
)
[pdf-full] => Array
(
[width] => 99999
[height] => 99999
[crop] =>
)
)

disabled sizes:
thumbnail: optimization=+ creation=+
medium: optimization=+ creation=+
medium_large: optimization=+ creation=+
large: optimization=+ creation=+
1536x1536: optimization=+ creation=+
2048x2048: optimization=+ creation=+
pdf-full: optimization=+ creation=+
delete originals: off
jpg2png: off
png2jpg: off
gif2png: off
png2jpg fill:
ewww_image_optimizer_jpg_background()
webp conversion: on
js webp rewriting: off
picture webp rewriting: on
WebP Rewrite exclusions:

webp paths:

forced webp: off
forced gif2webp: on
enable help beacon: no
origin (SERVER_ADDR): 178.62.62.245
found Cloudflare host via HTTP_CF_IPCOUNTRY
max_execution_time: 360
ewww_image_optimizer_stl_check()
disable_functions: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
detected memory limit is: 268435456

• This reply was modified 2 years, 8 months ago by mburdett555.

OK, so it’s probable then that the file size is just not smaller than the original. If you want, you can verify this by finding the specific file in your media library (in list mode), checking the box next to it and then selecting “Bulk Optimizer” from the drop down at the top. In the Bulk Optimize window, select the option on the right for “Force Re-optimize” and “WebP Only”, then run the optimization. It will try to generate a WebP for that image and, if it doesn’t, it should say why.