|
1
|
|
|
<?php |
|
2
|
|
|
namespace SEOCheckup; |
|
3
|
|
|
|
|
4
|
|
|
/** |
|
5
|
|
|
* @package seo-checkup |
|
6
|
|
|
* @author Burak <[email protected]> |
|
7
|
|
|
*/ |
|
8
|
|
|
|
|
9
|
|
|
use DOMDocument; |
|
10
|
|
|
use DOMXPath; |
|
11
|
|
|
|
|
12
|
|
|
class Analyze extends PreRequirements |
|
13
|
|
|
{ |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* @var array $data |
|
17
|
|
|
*/ |
|
18
|
|
|
private $data; |
|
19
|
|
|
|
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* @var Helpers $helpers |
|
23
|
|
|
*/ |
|
24
|
|
|
private $helpers; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* @var DOMDocument $dom |
|
28
|
|
|
*/ |
|
29
|
|
|
private $dom; |
|
30
|
|
|
|
|
31
|
|
|
/** |
|
32
|
|
|
* Initialize from URL via Guzzle |
|
33
|
|
|
* |
|
34
|
|
|
* @param string $url |
|
35
|
|
|
* @return $this |
|
36
|
|
|
*/ |
|
37
|
|
|
public function __construct($url) |
|
38
|
|
|
{ |
|
39
|
|
|
$started_on = microtime(true); |
|
40
|
|
|
$response = $this->Request($url); |
|
41
|
|
|
|
|
42
|
|
|
$parsed_url = parse_url($url); |
|
43
|
|
|
$dns_recods = (array) @dns_get_record($parsed_url['host']); |
|
44
|
|
|
|
|
45
|
|
|
$this->data = [ |
|
46
|
|
|
'url' => $url, |
|
47
|
|
|
'parsed_url' => $parsed_url, |
|
48
|
|
|
'status' => $response->getStatusCode(), |
|
49
|
|
|
'headers' => $response->getHeaders(), |
|
50
|
|
|
'page_speed' => number_format(( microtime(true) - $started_on), 4), |
|
51
|
|
|
'dns_records' => $dns_recods, |
|
52
|
|
|
'content' => $response->getBody()->getContents() |
|
53
|
|
|
]; |
|
54
|
|
|
|
|
55
|
|
|
$this->helpers = new Helpers($this->data); |
|
56
|
|
|
|
|
57
|
|
|
return $this; |
|
58
|
|
|
} |
|
59
|
|
|
|
|
60
|
|
|
/** |
|
61
|
|
|
* Initialize DOMDocument |
|
62
|
|
|
* |
|
63
|
|
|
* @return DOMDocument |
|
64
|
|
|
*/ |
|
65
|
|
|
private function DOMDocument() |
|
66
|
|
|
{ |
|
67
|
|
|
libxml_use_internal_errors(true); |
|
68
|
|
|
|
|
69
|
|
|
$this->dom = new DOMDocument(); |
|
70
|
|
|
|
|
71
|
|
|
return $this->dom; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* Initialize DOMXPath |
|
76
|
|
|
* |
|
77
|
|
|
* @return DOMXPath |
|
78
|
|
|
*/ |
|
79
|
|
|
private function DOMXPath() |
|
80
|
|
|
{ |
|
81
|
|
|
return new DOMXPath($this->dom); |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
/** |
|
85
|
|
|
* Standardizes output |
|
86
|
|
|
* |
|
87
|
|
|
* @param mixed $return |
|
88
|
|
|
* @param string $service |
|
89
|
|
|
* @return array |
|
90
|
|
|
*/ |
|
91
|
|
|
private function Output($return, $service) |
|
92
|
|
|
{ |
|
93
|
|
|
return [ |
|
94
|
|
|
'url' => $this->data['url'], |
|
95
|
|
|
'status' => $this->data['status'], |
|
96
|
|
|
'headers' => $this->data['headers'], |
|
97
|
|
|
'service' => preg_replace("([A-Z])", " $0", $service), |
|
98
|
|
|
'time' => time(), |
|
99
|
|
|
'data' => $return |
|
100
|
|
|
]; |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
/** |
|
104
|
|
|
* Analyze Broken Links in a page |
|
105
|
|
|
* |
|
106
|
|
|
* @return array |
|
107
|
|
|
*/ |
|
108
|
|
|
public function BrokenLinks() |
|
109
|
|
|
{ |
|
110
|
|
|
$dom = $this->DOMDocument(); |
|
111
|
|
|
$dom->loadHTML($this->data['content']); |
|
112
|
|
|
|
|
113
|
|
|
$links = $this->helpers->Links($dom)->GetLinks(); |
|
114
|
|
|
$scan = ['errors' => [], 'passed' => []]; |
|
115
|
|
|
$i = 0; |
|
116
|
|
|
|
|
117
|
|
|
foreach ($links as $key => $link) |
|
118
|
|
|
{ |
|
119
|
|
|
$i++; |
|
120
|
|
|
|
|
121
|
|
|
if($i >= 25) |
|
122
|
|
|
break; |
|
123
|
|
|
|
|
124
|
|
|
$status = $this->Request($link)->getStatusCode(); |
|
125
|
|
|
|
|
126
|
|
|
if(substr($status,0,1) > 3 && $status != 999) |
|
127
|
|
|
$scan['errors']["HTTP {$status}"][] = $link; |
|
128
|
|
|
else |
|
129
|
|
|
$scan['passed']["HTTP {$status}"][] = $link; |
|
130
|
|
|
} |
|
131
|
|
|
return $this->Output([ |
|
132
|
|
|
'links' => $links, |
|
133
|
|
|
'scanned' => $scan |
|
134
|
|
|
], __FUNCTION__); |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* Checks header parameters if there is something about cache |
|
139
|
|
|
* |
|
140
|
|
|
* @return array |
|
141
|
|
|
*/ |
|
142
|
|
|
public function Cache() |
|
143
|
|
|
{ |
|
144
|
|
|
$output = ['headers' => [], 'html' => []]; |
|
145
|
|
|
|
|
146
|
|
|
foreach ($this->data['headers'] as $header) |
|
147
|
|
|
{ |
|
148
|
|
|
foreach ($header as $item) |
|
149
|
|
|
{ |
|
150
|
|
|
if(strpos(mb_strtolower($item),'cache') !== false) |
|
151
|
|
|
{ |
|
152
|
|
|
$output['headers'][] = $item; |
|
153
|
|
|
} |
|
154
|
|
|
} |
|
155
|
|
|
} |
|
156
|
|
|
|
|
157
|
|
|
$dom = $this->DOMDocument(); |
|
158
|
|
|
$dom->loadHTML($this->data['content']); |
|
159
|
|
|
$xpath = $this->DOMXPath(); |
|
160
|
|
|
|
|
161
|
|
|
foreach ($xpath->query('//comment()') as $comment) |
|
162
|
|
|
{ |
|
163
|
|
|
if(strpos(mb_strtolower($comment->textContent),'cache') !== false) |
|
164
|
|
|
{ |
|
165
|
|
|
$output['html'][] = '<!-- '.trim($comment->textContent).' //-->'; |
|
166
|
|
|
} |
|
167
|
|
|
} |
|
168
|
|
|
return $this->Output($output, __FUNCTION__); |
|
169
|
|
|
} |
|
170
|
|
|
|
|
171
|
|
|
/** |
|
172
|
|
|
* Checks canonical tag |
|
173
|
|
|
* |
|
174
|
|
|
* @return array |
|
175
|
|
|
*/ |
|
176
|
|
|
public function CanonicalTag() |
|
177
|
|
|
{ |
|
178
|
|
|
$dom = $this->DOMDocument(); |
|
179
|
|
|
$dom->loadHTML($this->data['content']); |
|
180
|
|
|
$output = array(); |
|
181
|
|
|
$links = $this->helpers->GetAttributes($dom, 'link', 'rel'); |
|
182
|
|
|
|
|
183
|
|
|
foreach($links as $item) |
|
184
|
|
|
{ |
|
185
|
|
|
if($item == 'canonical') |
|
186
|
|
|
{ |
|
187
|
|
|
$output[] = $item; |
|
188
|
|
|
} |
|
189
|
|
|
} |
|
190
|
|
|
|
|
191
|
|
|
return $this->Output($output, __FUNCTION__); |
|
192
|
|
|
} |
|
193
|
|
|
|
|
194
|
|
|
/** |
|
195
|
|
|
* Determines character set from headers |
|
196
|
|
|
* |
|
197
|
|
|
* @TODO: Use Regex instead of explode |
|
198
|
|
|
* @return array |
|
199
|
|
|
*/ |
|
200
|
|
|
public function CharacterSet() |
|
201
|
|
|
{ |
|
202
|
|
|
$output = ''; |
|
203
|
|
|
|
|
204
|
|
|
foreach ($this->data['headers'] as $key => $header) |
|
205
|
|
|
{ |
|
206
|
|
|
if($key == 'Content-Type') |
|
207
|
|
|
{ |
|
208
|
|
|
$output = explode('=', explode(';',$header[0])[1])[1]; |
|
209
|
|
|
} |
|
210
|
|
|
} |
|
211
|
|
|
return $this->Output($output, __FUNCTION__); |
|
212
|
|
|
} |
|
213
|
|
|
|
|
214
|
|
|
/** |
|
215
|
|
|
* Calculates code / content percentage |
|
216
|
|
|
* |
|
217
|
|
|
* @return array |
|
218
|
|
|
*/ |
|
219
|
|
|
public function CodeContent() |
|
220
|
|
|
{ |
|
221
|
|
|
$page_size = mb_strlen($this->data['content'], 'utf8'); |
|
222
|
|
|
$dom = $this->DOMDocument(); |
|
223
|
|
|
$dom->loadHTML($this->data['content']); |
|
224
|
|
|
|
|
225
|
|
|
$script = $dom->getElementsByTagName('script'); |
|
226
|
|
|
$remove = array(); |
|
227
|
|
|
|
|
228
|
|
|
foreach ($script as $item) |
|
229
|
|
|
{ |
|
230
|
|
|
$remove[] = $item; |
|
231
|
|
|
} |
|
232
|
|
|
|
|
233
|
|
|
foreach ($remove as $item) |
|
234
|
|
|
{ |
|
235
|
|
|
$item->parentNode->removeChild($item); |
|
236
|
|
|
} |
|
237
|
|
|
|
|
238
|
|
|
$page = $dom->saveHTML(); |
|
239
|
|
|
$content_size = mb_strlen(strip_tags($page), 'utf8'); |
|
240
|
|
|
$rate = (round($content_size / $page_size * 100)); |
|
241
|
|
|
$output = array( |
|
242
|
|
|
'page_size' => $page_size, |
|
243
|
|
|
'code_size' => ($page_size - $content_size), |
|
244
|
|
|
'content_size' => $content_size, |
|
245
|
|
|
'content' => $this->helpers->Whitespace(strip_tags($page)), |
|
246
|
|
|
'percentage' => "$rate%" |
|
247
|
|
|
); |
|
248
|
|
|
|
|
249
|
|
|
return $this->Output($output, __FUNCTION__); |
|
250
|
|
|
} |
|
251
|
|
|
|
|
252
|
|
|
/** |
|
253
|
|
|
* Checks deprecated HTML tag usage |
|
254
|
|
|
* |
|
255
|
|
|
* @return array |
|
256
|
|
|
*/ |
|
257
|
|
|
public function DeprecatedHTML() |
|
258
|
|
|
{ |
|
259
|
|
|
$dom = $this->DOMDocument(); |
|
260
|
|
|
$dom->loadHTML($this->data['content']); |
|
261
|
|
|
|
|
262
|
|
|
$deprecated_tags = array( |
|
263
|
|
|
'acronym', |
|
264
|
|
|
'applet', |
|
265
|
|
|
'basefont', |
|
266
|
|
|
'big', |
|
267
|
|
|
'center', |
|
268
|
|
|
'dir', |
|
269
|
|
|
'font', |
|
270
|
|
|
'frame', |
|
271
|
|
|
'frameset', |
|
272
|
|
|
'isindex', |
|
273
|
|
|
'noframes', |
|
274
|
|
|
's', |
|
275
|
|
|
'strike', |
|
276
|
|
|
'tt', |
|
277
|
|
|
'u' |
|
278
|
|
|
); |
|
279
|
|
|
|
|
280
|
|
|
$output = array(); |
|
281
|
|
|
|
|
282
|
|
|
foreach ($deprecated_tags as $tag) |
|
283
|
|
|
{ |
|
284
|
|
|
$tags = $dom->getElementsByTagName($tag); |
|
285
|
|
|
|
|
286
|
|
|
if($tags->length > 0) |
|
287
|
|
|
{ |
|
288
|
|
|
$output[$tag] = $tags->length; |
|
289
|
|
|
} |
|
290
|
|
|
} |
|
291
|
|
|
|
|
292
|
|
|
return $this->Output($output, __FUNCTION__); |
|
293
|
|
|
} |
|
294
|
|
|
|
|
295
|
|
|
/** |
|
296
|
|
|
* Determines length of the domain |
|
297
|
|
|
* |
|
298
|
|
|
* @return array |
|
299
|
|
|
*/ |
|
300
|
|
|
public function DomainLength() |
|
301
|
|
|
{ |
|
302
|
|
|
$domain = explode('.',$this->data['parsed_url']['host']); |
|
303
|
|
|
|
|
304
|
|
|
array_pop($domain); |
|
305
|
|
|
|
|
306
|
|
|
$domain = implode('.',$domain); |
|
307
|
|
|
|
|
308
|
|
|
return $this->Output(strlen($domain), __FUNCTION__); |
|
309
|
|
|
} |
|
310
|
|
|
|
|
311
|
|
|
/** |
|
312
|
|
|
* Looks for a favicon |
|
313
|
|
|
* |
|
314
|
|
|
* @return array |
|
315
|
|
|
*/ |
|
316
|
|
|
public function Favicon() |
|
317
|
|
|
{ |
|
318
|
|
|
$ico = "{$this->data['parsed_url']['scheme']}://{$this->data['parsed_url']['host']}/favicon.ico"; |
|
319
|
|
|
$link = ''; |
|
320
|
|
|
|
|
321
|
|
|
if($this->Request($ico)->getStatusCode() === 200) |
|
322
|
|
|
{ |
|
323
|
|
|
$link = $ico; |
|
324
|
|
|
} else { |
|
325
|
|
|
|
|
326
|
|
|
$dom = $this->DOMDocument(); |
|
327
|
|
|
$dom->loadHTML($this->data['content']); |
|
328
|
|
|
|
|
329
|
|
|
$tags = $dom->getElementsByTagName('link'); |
|
330
|
|
|
$fav = null; |
|
331
|
|
|
|
|
332
|
|
|
foreach ($tags as $tag) |
|
333
|
|
|
{ |
|
334
|
|
|
if($tag->getAttribute('rel') == 'shortcut icon' OR $tag->getAttribute('rel') == 'icon') |
|
335
|
|
|
{ |
|
336
|
|
|
$fav = $tag->getAttribute('href'); |
|
337
|
|
|
break; |
|
338
|
|
|
} |
|
339
|
|
|
} |
|
340
|
|
|
|
|
341
|
|
|
if (!filter_var($fav, FILTER_VALIDATE_URL) === false && $this->Request($fav)->getStatusCode() == 200) |
|
342
|
|
|
{ |
|
343
|
|
|
$link = $fav; |
|
344
|
|
|
} else if($this->Request($this->data['parsed_url']['scheme'].'://'.$this->data['parsed_url']['host'].'/'.$fav)->getStatusCode() == 200) |
|
345
|
|
|
{ |
|
346
|
|
|
$link = $this->data['parsed_url']['scheme'].'://'.$this->data['parsed_url']['host'].'/'.$fav; |
|
347
|
|
|
} else if($this->Request($_GET['value'].'/'.$fav)->getStatusCode() == 200) |
|
348
|
|
|
{ |
|
349
|
|
|
$link = $_GET['value'].'/'.$fav; |
|
350
|
|
|
} else { |
|
351
|
|
|
$link = ''; |
|
352
|
|
|
} |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
|
|
356
|
|
|
return $this->Output($link, __FUNCTION__); |
|
357
|
|
|
} |
|
358
|
|
|
|
|
359
|
|
|
/** |
|
360
|
|
|
* Checks if there is a frame in the page |
|
361
|
|
|
* |
|
362
|
|
|
* @return array |
|
363
|
|
|
*/ |
|
364
|
|
|
public function Frameset() |
|
365
|
|
|
{ |
|
366
|
|
|
$dom = $this->DOMDocument(); |
|
367
|
|
|
$dom->loadHTML($this->data['content']); |
|
368
|
|
|
|
|
369
|
|
|
$tags = $dom->getElementsByTagName('frameset'); |
|
370
|
|
|
$output = ['frameset' => [], 'frame' => []]; |
|
371
|
|
|
foreach ($tags as $tag) |
|
372
|
|
|
{ |
|
373
|
|
|
$output['frameset'][] = null; |
|
374
|
|
|
} |
|
375
|
|
|
|
|
376
|
|
|
$tags = $dom->getElementsByTagName('frame'); |
|
377
|
|
|
foreach ($tags as $tag) |
|
378
|
|
|
{ |
|
379
|
|
|
$output['frame'][] = null; |
|
380
|
|
|
} |
|
381
|
|
|
|
|
382
|
|
|
return $this->Output([ |
|
383
|
|
|
'frameset' => count($output['frameset']), |
|
384
|
|
|
'frame' => count($output['frame']) |
|
385
|
|
|
], __FUNCTION__); |
|
386
|
|
|
} |
|
387
|
|
|
|
|
388
|
|
|
/** |
|
389
|
|
|
* Finds Google Analytics code |
|
390
|
|
|
* |
|
391
|
|
|
* @return array |
|
392
|
|
|
*/ |
|
393
|
|
|
public function GoogleAnalytics() |
|
394
|
|
|
{ |
|
395
|
|
|
$dom = $this->DOMDocument(); |
|
396
|
|
|
$dom->loadHTML($this->data['content']); |
|
397
|
|
|
|
|
398
|
|
|
$script = ''; |
|
399
|
|
|
|
|
400
|
|
|
$tags = $dom->getElementsByTagName('script'); |
|
401
|
|
|
foreach ($tags as $tag) |
|
402
|
|
|
{ |
|
403
|
|
|
if($tag->getAttribute('src')) |
|
404
|
|
|
{ |
|
405
|
|
|
if (0 === strpos($tag->getAttribute('src'), '//')) |
|
406
|
|
|
{ |
|
407
|
|
|
$href = $this->data['parsed_url']['scheme'] . ':'.$tag->getAttribute('src'); |
|
408
|
|
|
} else if (0 !== strpos($tag->getAttribute('src'), 'http')) |
|
409
|
|
|
{ |
|
410
|
|
|
$path = '/' . ltrim($tag->getAttribute('src'), '/'); |
|
411
|
|
|
$href = $this->data['parsed_url']['scheme'] . '://'; |
|
412
|
|
|
|
|
413
|
|
|
if (isset($this->data['parsed_url']['user']) && isset($this->data['parsed_url']['pass'])) |
|
414
|
|
|
{ |
|
415
|
|
|
$href .= $this->data['parsed_url']['user'] . ':' . $this->data['parsed_url']['pass'] . '@'; |
|
416
|
|
|
} |
|
417
|
|
|
|
|
418
|
|
|
$href .= $this->data['parsed_url']['host']; |
|
419
|
|
|
|
|
420
|
|
|
if (isset($this->data['parsed_url']['port'])) |
|
421
|
|
|
{ |
|
422
|
|
|
$href .= ':' . $this->data['parsed_url']['port']; |
|
423
|
|
|
} |
|
424
|
|
|
$href .= $path; |
|
425
|
|
|
} else { |
|
426
|
|
|
$href = $tag->getAttribute('src'); |
|
427
|
|
|
} |
|
428
|
|
|
|
|
429
|
|
|
$script .= $this->Request($href)->getBody()->getContents(); |
|
430
|
|
|
} else { |
|
431
|
|
|
$script .= $tag->nodeValue; |
|
432
|
|
|
} |
|
433
|
|
|
} |
|
434
|
|
|
|
|
435
|
|
|
$ua_regex = "/UA-[0-9]{5,}-[0-9]{1,}/"; |
|
436
|
|
|
|
|
437
|
|
|
preg_match_all($ua_regex, $script, $ua_id); |
|
438
|
|
|
|
|
439
|
|
|
return $this->Output($ua_id[0][0], __FUNCTION__); |
|
440
|
|
|
} |
|
441
|
|
|
|
|
442
|
|
|
/** |
|
443
|
|
|
* Checks h1 HTML tag usage |
|
444
|
|
|
* |
|
445
|
|
|
* @return array |
|
446
|
|
|
*/ |
|
447
|
|
|
public function Header1() |
|
448
|
|
|
{ |
|
449
|
|
|
$dom = $this->DOMDocument(); |
|
450
|
|
|
$dom->loadHTML($this->data['content']); |
|
451
|
|
|
|
|
452
|
|
|
$tags = $dom->getElementsByTagName('h1'); |
|
453
|
|
|
$output = array(); |
|
454
|
|
|
foreach ($tags as $tag) |
|
455
|
|
|
{ |
|
456
|
|
|
$output[] = $tag->nodeValue; |
|
457
|
|
|
} |
|
458
|
|
|
|
|
459
|
|
|
return $this->Output($output, __FUNCTION__); |
|
460
|
|
|
} |
|
461
|
|
|
|
|
462
|
|
|
/** |
|
463
|
|
|
* Checks h2 HTML tag usage |
|
464
|
|
|
* |
|
465
|
|
|
* @return array |
|
466
|
|
|
*/ |
|
467
|
|
|
public function Header2() |
|
468
|
|
|
{ |
|
469
|
|
|
$dom = $this->DOMDocument(); |
|
470
|
|
|
$dom->loadHTML($this->data['content']); |
|
471
|
|
|
|
|
472
|
|
|
$tags = $dom->getElementsByTagName('h2'); |
|
473
|
|
|
$output = array(); |
|
474
|
|
|
foreach ($tags as $tag) |
|
475
|
|
|
{ |
|
476
|
|
|
$output[] = $tag->nodeValue; |
|
477
|
|
|
} |
|
478
|
|
|
|
|
479
|
|
|
return $this->Output($output, __FUNCTION__); |
|
480
|
|
|
} |
|
481
|
|
|
|
|
482
|
|
|
/** |
|
483
|
|
|
* Checks HTTPS |
|
484
|
|
|
* |
|
485
|
|
|
* @return array |
|
486
|
|
|
*/ |
|
487
|
|
|
public function Https() |
|
488
|
|
|
{ |
|
489
|
|
|
$https = ($this->data['parsed_url']['scheme'] === 'https') ? true : false; |
|
490
|
|
|
|
|
491
|
|
|
return $this->Output($https, __FUNCTION__); |
|
492
|
|
|
} |
|
493
|
|
|
|
|
494
|
|
|
/** |
|
495
|
|
|
* Checks empty image alts |
|
496
|
|
|
* |
|
497
|
|
|
* @return array |
|
498
|
|
|
*/ |
|
499
|
|
|
public function ImageAlt() |
|
500
|
|
|
{ |
|
501
|
|
|
$dom = $this->DOMDocument(); |
|
502
|
|
|
$dom->loadHTML($this->data['content']); |
|
503
|
|
|
|
|
504
|
|
|
$tags = $dom->getElementsByTagName('img'); |
|
505
|
|
|
$images = array(); |
|
506
|
|
|
$errors = array(); |
|
507
|
|
|
|
|
508
|
|
|
foreach($tags as $item) |
|
509
|
|
|
{ |
|
510
|
|
|
$src = $item->getAttribute('src'); |
|
511
|
|
|
$alt = $item->getAttribute('alt'); |
|
512
|
|
|
|
|
513
|
|
|
$images[] = array( |
|
514
|
|
|
'src' => $src, |
|
515
|
|
|
'alt' => $alt |
|
516
|
|
|
); |
|
517
|
|
|
|
|
518
|
|
|
if($alt == '') |
|
519
|
|
|
{ |
|
520
|
|
|
$link = $src; |
|
521
|
|
|
|
|
522
|
|
|
$errors[] = $link; |
|
523
|
|
|
} |
|
524
|
|
|
} |
|
525
|
|
|
|
|
526
|
|
|
$output = array( |
|
527
|
|
|
'images' => $images, |
|
528
|
|
|
'without_alt' => $errors |
|
529
|
|
|
); |
|
530
|
|
|
|
|
531
|
|
|
return $this->Output($output, __FUNCTION__); |
|
532
|
|
|
} |
|
533
|
|
|
|
|
534
|
|
|
/** |
|
535
|
|
|
* Gets inbound links |
|
536
|
|
|
* |
|
537
|
|
|
* @return array |
|
538
|
|
|
*/ |
|
539
|
|
|
public function InboundLinks() |
|
540
|
|
|
{ |
|
541
|
|
|
$dom = $this->DOMDocument(); |
|
542
|
|
|
$dom->loadHTML($this->data['content']); |
|
543
|
|
|
|
|
544
|
|
|
$tags = $dom->getElementsByTagName('a'); |
|
545
|
|
|
$output = array(); |
|
546
|
|
|
|
|
547
|
|
|
foreach($tags as $item) |
|
548
|
|
|
{ |
|
549
|
|
|
$link = $item->getAttribute('href'); |
|
550
|
|
|
|
|
551
|
|
|
if($link != '' && strpos($link,'#') !== 0) |
|
552
|
|
|
{ |
|
553
|
|
|
$link = parse_url($link); |
|
554
|
|
|
|
|
555
|
|
|
if(!isset($link['scheme'])) |
|
556
|
|
|
{ |
|
557
|
|
|
$link['scheme'] = $this->data['parsed_url']['scheme']; |
|
558
|
|
|
} |
|
559
|
|
|
|
|
560
|
|
|
if(!isset($link['host'])) |
|
561
|
|
|
{ |
|
562
|
|
|
$link['host'] = $this->data['parsed_url']['host']; |
|
563
|
|
|
} |
|
564
|
|
|
|
|
565
|
|
|
if(!isset($link['path'])) |
|
566
|
|
|
{ |
|
567
|
|
|
$link['path'] = ''; |
|
568
|
|
|
} else { |
|
569
|
|
|
if(strpos($link['path'],'/') === false) |
|
570
|
|
|
{ |
|
571
|
|
|
$link['path'] = '/'.$link['path']; |
|
572
|
|
|
} |
|
573
|
|
|
} |
|
574
|
|
|
|
|
575
|
|
|
if(!isset($link['query'])) |
|
576
|
|
|
{ |
|
577
|
|
|
$link['query'] = ''; |
|
578
|
|
|
} else { |
|
579
|
|
|
$link['query'] = '?'.$link['query']; |
|
580
|
|
|
} |
|
581
|
|
|
|
|
582
|
|
|
$output[] = $link['scheme'].'://'.$link['host'].$link['path'].$link['query']; |
|
583
|
|
|
} |
|
584
|
|
|
} |
|
585
|
|
|
|
|
586
|
|
|
foreach ($output as $key => $link) |
|
587
|
|
|
{ |
|
588
|
|
|
if (parse_url($link)['host'] != $this->data['parsed_url']['host']) { |
|
589
|
|
|
unset($output[$key]); |
|
590
|
|
|
continue; |
|
591
|
|
|
} |
|
592
|
|
|
} |
|
593
|
|
|
|
|
594
|
|
|
return $this->Output($output, __FUNCTION__); |
|
595
|
|
|
} |
|
596
|
|
|
|
|
597
|
|
|
/** |
|
598
|
|
|
* Gets inbound links |
|
599
|
|
|
* |
|
600
|
|
|
* @return array |
|
601
|
|
|
*/ |
|
602
|
|
|
public function InlineCss() |
|
603
|
|
|
{ |
|
604
|
|
|
$dom = $this->DOMDocument(); |
|
605
|
|
|
$dom->loadHTML($this->data['content']); |
|
606
|
|
|
|
|
607
|
|
|
$tags = $dom->getElementsByTagName('style'); |
|
608
|
|
|
$output = array(); |
|
609
|
|
|
|
|
610
|
|
|
foreach($tags as $item) |
|
611
|
|
|
{ |
|
612
|
|
|
$output[] = $this->helpers->Whitespace($item->textContent); |
|
613
|
|
|
} |
|
614
|
|
|
|
|
615
|
|
|
return $this->Output($output, __FUNCTION__); |
|
616
|
|
|
} |
|
617
|
|
|
|
|
618
|
|
|
/** |
|
619
|
|
|
* Gets meta description |
|
620
|
|
|
* |
|
621
|
|
|
* @return array |
|
622
|
|
|
*/ |
|
623
|
|
|
public function MetaDescription() |
|
624
|
|
|
{ |
|
625
|
|
|
$dom = $this->DOMDocument(); |
|
626
|
|
|
$dom->loadHTML($this->data['content']); |
|
627
|
|
|
$tags = $dom->getElementsByTagName('meta'); |
|
628
|
|
|
$output = ''; |
|
629
|
|
|
foreach ($tags as $tag) |
|
630
|
|
|
{ |
|
631
|
|
|
$content = $tag->getAttribute('content'); |
|
632
|
|
|
if(strtolower($tag->getAttribute('name')) == 'description' && strlen($content) > 0) |
|
633
|
|
|
{ |
|
634
|
|
|
$output = $content; |
|
635
|
|
|
} |
|
636
|
|
|
} |
|
637
|
|
|
|
|
638
|
|
|
return $this->Output($output, __FUNCTION__); |
|
639
|
|
|
} |
|
640
|
|
|
|
|
641
|
|
|
/** |
|
642
|
|
|
* Gets meta title |
|
643
|
|
|
* |
|
644
|
|
|
* @return array |
|
645
|
|
|
*/ |
|
646
|
|
|
public function MetaTitle() |
|
647
|
|
|
{ |
|
648
|
|
|
$dom = $this->DOMDocument(); |
|
649
|
|
|
$dom->loadHTML($this->data['content']); |
|
650
|
|
|
$tags = $dom->getElementsByTagName('title'); |
|
651
|
|
|
$output = ''; |
|
652
|
|
|
foreach ($tags as $tag) |
|
653
|
|
|
{ |
|
654
|
|
|
if(isset($tag->nodeValue) && strlen($tag->nodeValue) > 0) |
|
655
|
|
|
{ |
|
656
|
|
|
$output = $tag->nodeValue; |
|
657
|
|
|
} |
|
658
|
|
|
break; |
|
659
|
|
|
} |
|
660
|
|
|
|
|
661
|
|
|
|
|
662
|
|
|
return $this->Output($output, __FUNCTION__); |
|
663
|
|
|
} |
|
664
|
|
|
|
|
665
|
|
|
/** |
|
666
|
|
|
* Gets no-follow tag |
|
667
|
|
|
* |
|
668
|
|
|
* @return array |
|
669
|
|
|
*/ |
|
670
|
|
|
public function NofollowTag() |
|
671
|
|
|
{ |
|
672
|
|
|
$dom = $this->DOMDocument(); |
|
673
|
|
|
$dom->loadHTML($this->data['content']); |
|
674
|
|
|
|
|
675
|
|
|
$tags = $dom->getElementsByTagName('meta'); |
|
676
|
|
|
$output = array(); |
|
677
|
|
|
foreach ($tags as $tag) |
|
678
|
|
|
{ |
|
679
|
|
|
if($tag->getAttribute('name') == 'robots') |
|
680
|
|
|
{ |
|
681
|
|
|
$output[] = $tag->getAttribute('content'); |
|
682
|
|
|
} |
|
683
|
|
|
} |
|
684
|
|
|
|
|
685
|
|
|
return $this->Output(in_array('nofollow',$output), __FUNCTION__); |
|
686
|
|
|
} |
|
687
|
|
|
|
|
688
|
|
|
/** |
|
689
|
|
|
* Gets no-index tag |
|
690
|
|
|
* |
|
691
|
|
|
* @return array |
|
692
|
|
|
*/ |
|
693
|
|
|
public function NoindexTag() |
|
694
|
|
|
{ |
|
695
|
|
|
$dom = $this->DOMDocument(); |
|
696
|
|
|
$dom->loadHTML($this->data['content']); |
|
697
|
|
|
|
|
698
|
|
|
$tags = $dom->getElementsByTagName('meta'); |
|
699
|
|
|
$output = array(); |
|
700
|
|
|
foreach ($tags as $tag) |
|
701
|
|
|
{ |
|
702
|
|
|
if($tag->getAttribute('name') == 'robots') |
|
703
|
|
|
{ |
|
704
|
|
|
$output[] = $tag->getAttribute('content'); |
|
705
|
|
|
} |
|
706
|
|
|
} |
|
707
|
|
|
|
|
708
|
|
|
return $this->Output(in_array('noindex',$output), __FUNCTION__); |
|
709
|
|
|
} |
|
710
|
|
|
|
|
711
|
|
|
/** |
|
712
|
|
|
* Counts objects in a page |
|
713
|
|
|
* |
|
714
|
|
|
* @return array |
|
715
|
|
|
*/ |
|
716
|
|
|
public function ObjectCount() |
|
717
|
|
|
{ |
|
718
|
|
|
$dom = $this->DOMDocument(); |
|
719
|
|
|
$dom->loadHTML($this->data['content']); |
|
720
|
|
|
|
|
721
|
|
|
$output = array( |
|
722
|
|
|
'css' => array(), |
|
723
|
|
|
'script' => array(), |
|
724
|
|
|
'img' => array() |
|
725
|
|
|
); |
|
726
|
|
|
|
|
727
|
|
|
$tags = $dom->getElementsByTagName('link'); |
|
728
|
|
|
foreach ($tags as $tag) |
|
729
|
|
|
{ |
|
730
|
|
|
if($tag->getAttribute('type') == 'text/css' OR $tag->getAttribute('rel') == 'stylesheet') |
|
731
|
|
|
{ |
|
732
|
|
|
$output['css'][] = $tag->getAttribute('href'); |
|
733
|
|
|
} |
|
734
|
|
|
} |
|
735
|
|
|
$output['css'] = array_unique($output['css']); |
|
736
|
|
|
|
|
737
|
|
|
$tags = $dom->getElementsByTagName('script'); |
|
738
|
|
|
foreach ($tags as $tag) |
|
739
|
|
|
{ |
|
740
|
|
|
if($tag->getAttribute('src') != '') |
|
741
|
|
|
{ |
|
742
|
|
|
$output['script'][] = $tag->getAttribute('src'); |
|
743
|
|
|
} |
|
744
|
|
|
} |
|
745
|
|
|
$output['script'] = array_unique($output['script']); |
|
746
|
|
|
|
|
747
|
|
|
$tags = $dom->getElementsByTagName('img'); |
|
748
|
|
|
foreach ($tags as $tag) |
|
749
|
|
|
{ |
|
750
|
|
|
if($tag->getAttribute('src') != '') |
|
751
|
|
|
{ |
|
752
|
|
|
$output['img'][] = $tag->getAttribute('src'); |
|
753
|
|
|
} |
|
754
|
|
|
} |
|
755
|
|
|
$output['img'] = array_unique($output['img']); |
|
756
|
|
|
|
|
757
|
|
|
return $this->Output($output, __FUNCTION__); |
|
758
|
|
|
} |
|
759
|
|
|
|
|
760
|
|
|
/** |
|
761
|
|
|
* Calculates page speed |
|
762
|
|
|
* |
|
763
|
|
|
* @return array |
|
764
|
|
|
*/ |
|
765
|
|
|
public function PageSpeed() |
|
766
|
|
|
{ |
|
767
|
|
|
return $this->Output($this->data['page_speed'], __FUNCTION__); |
|
768
|
|
|
} |
|
769
|
|
|
|
|
770
|
|
|
/** |
|
771
|
|
|
* Checks if there is some plaintext email |
|
772
|
|
|
* |
|
773
|
|
|
* @return array |
|
774
|
|
|
*/ |
|
775
|
|
|
public function PlaintextEmail() |
|
776
|
|
|
{ |
|
777
|
|
|
$dom = $this->DOMDocument(); |
|
778
|
|
|
$dom->loadHTML($this->data['content']); |
|
779
|
|
|
|
|
780
|
|
|
$script = $dom->getElementsByTagName('script'); |
|
781
|
|
|
$remove = array(); |
|
782
|
|
|
|
|
783
|
|
|
foreach($script as $item) |
|
784
|
|
|
{ |
|
785
|
|
|
$remove[] = $item; |
|
786
|
|
|
} |
|
787
|
|
|
|
|
788
|
|
|
foreach ($remove as $item) |
|
789
|
|
|
{ |
|
790
|
|
|
$item->parentNode->removeChild($item); |
|
791
|
|
|
} |
|
792
|
|
|
$style = $dom->getElementsByTagName('style'); |
|
793
|
|
|
$remove = array(); |
|
794
|
|
|
|
|
795
|
|
|
foreach($style as $item) |
|
796
|
|
|
{ |
|
797
|
|
|
$remove[] = $item; |
|
798
|
|
|
} |
|
799
|
|
|
|
|
800
|
|
|
foreach ($remove as $item) |
|
801
|
|
|
{ |
|
802
|
|
|
$item->parentNode->removeChild($item); |
|
803
|
|
|
} |
|
804
|
|
|
|
|
805
|
|
|
$page = $dom->saveHTML(); |
|
806
|
|
|
$page = trim(preg_replace('/<[^>]*>/', ' ', $page)); |
|
807
|
|
|
$page = preg_replace('/\s+/', ' ',$page); |
|
808
|
|
|
$page = explode(' ',$page); |
|
809
|
|
|
|
|
810
|
|
|
$output = array(); |
|
811
|
|
|
foreach ($page as $item) |
|
812
|
|
|
{ |
|
813
|
|
|
$item = trim($item); |
|
814
|
|
|
|
|
815
|
|
|
if($item != '' && strpos($item,'@') !== false) |
|
816
|
|
|
{ |
|
817
|
|
|
if (!filter_var($item, FILTER_VALIDATE_EMAIL) === false) { |
|
818
|
|
|
$output[] = $item; |
|
819
|
|
|
} |
|
820
|
|
|
} |
|
821
|
|
|
} |
|
822
|
|
|
|
|
823
|
|
|
$output = array_unique($output); |
|
824
|
|
|
|
|
825
|
|
|
return $this->Output($output, __FUNCTION__); |
|
826
|
|
|
} |
|
827
|
|
|
|
|
828
|
|
|
/** |
|
829
|
|
|
* Checks HTML page compression |
|
830
|
|
|
* |
|
831
|
|
|
* @return array |
|
832
|
|
|
*/ |
|
833
|
|
|
public function PageCompression() |
|
834
|
|
|
{ |
|
835
|
|
|
$output = array(); |
|
836
|
|
|
|
|
837
|
|
|
$output['actual'] = round(strlen($this->data['content']) / 1024,2); |
|
838
|
|
|
$output['possible'] = gzcompress($this->data['content'], 9); |
|
839
|
|
|
$output['possible'] = round(strlen($output['possible']) / 1024,2); |
|
840
|
|
|
$output['percentage'] = round((($output['possible'] * 100) / $output['actual']),2); |
|
841
|
|
|
$output['difference'] = round($output['actual'] - $output['possible'],2); |
|
842
|
|
|
|
|
843
|
|
|
return $this->Output($output, __FUNCTION__); |
|
844
|
|
|
} |
|
845
|
|
|
|
|
846
|
|
|
/** |
|
847
|
|
|
* Checks robots.txt |
|
848
|
|
|
* |
|
849
|
|
|
* @return array |
|
850
|
|
|
*/ |
|
851
|
|
|
public function RobotsFile() |
|
852
|
|
|
{ |
|
853
|
|
|
$output = $this->Request("{$this->data['parsed_url']['scheme']}://{$this->data['parsed_url']['host']}/robots.txt"); |
|
854
|
|
|
|
|
855
|
|
|
if($output->getStatusCode() === 200) |
|
856
|
|
|
{ |
|
857
|
|
|
$output = $output->getBody()->getContents(); |
|
858
|
|
|
} else { |
|
859
|
|
|
$output = false; |
|
860
|
|
|
} |
|
861
|
|
|
|
|
862
|
|
|
return $this->Output($output, __FUNCTION__); |
|
863
|
|
|
} |
|
864
|
|
|
|
|
865
|
|
|
/** |
|
866
|
|
|
* Server signature |
|
867
|
|
|
* |
|
868
|
|
|
* @return array |
|
869
|
|
|
*/ |
|
870
|
|
|
public function ServerSignature() |
|
871
|
|
|
{ |
|
872
|
|
|
$output = array(); |
|
873
|
|
|
$danger = array( |
|
874
|
|
|
'server', |
|
875
|
|
|
'powered' |
|
876
|
|
|
); |
|
877
|
|
|
|
|
878
|
|
|
foreach ($this->data['headers'] as $key => $header) |
|
879
|
|
|
{ |
|
880
|
|
|
foreach ($danger as $check) |
|
881
|
|
|
{ |
|
882
|
|
|
if(strpos(mb_strtolower($key),$check) !== false || strpos(mb_strtolower($header[0]),$check) !== false) |
|
883
|
|
|
{ |
|
884
|
|
|
$output[$key] = $header[0]; |
|
885
|
|
|
} |
|
886
|
|
|
} |
|
887
|
|
|
} |
|
888
|
|
|
|
|
889
|
|
|
return $this->Output($output, __FUNCTION__); |
|
890
|
|
|
} |
|
891
|
|
|
|
|
892
|
|
|
/** |
|
893
|
|
|
* Social media accounts |
|
894
|
|
|
* |
|
895
|
|
|
* @return array |
|
896
|
|
|
*/ |
|
897
|
|
|
public function SocialMedia() |
|
898
|
|
|
{ |
|
899
|
|
|
$socials = array( |
|
900
|
|
|
'Facebook' => 'facebook.com', |
|
901
|
|
|
'Twitter' => 'twitter.com', |
|
902
|
|
|
'LinkedIn' => 'linkedin.com', |
|
903
|
|
|
'YouTube' => 'youtube.com', |
|
904
|
|
|
'GitHub' => 'github.com' |
|
905
|
|
|
); |
|
906
|
|
|
|
|
907
|
|
|
$output = array(); |
|
908
|
|
|
$dom = $this->DOMDocument(); |
|
909
|
|
|
$dom->loadHTML($this->data['content']); |
|
910
|
|
|
|
|
911
|
|
|
$links = $this->helpers->Links($dom)->GetLinks(); |
|
912
|
|
|
|
|
913
|
|
|
foreach($links as $link) |
|
914
|
|
|
{ |
|
915
|
|
|
foreach ($socials as $key => $social) |
|
916
|
|
|
{ |
|
917
|
|
|
if(strpos($link, $social) !== false) |
|
918
|
|
|
{ |
|
919
|
|
|
$output[$key][] = $link; |
|
920
|
|
|
} |
|
921
|
|
|
} |
|
922
|
|
|
} |
|
923
|
|
|
|
|
924
|
|
|
return $this->Output($output, __FUNCTION__); |
|
925
|
|
|
} |
|
926
|
|
|
|
|
927
|
|
|
/** |
|
928
|
|
|
* SPF record |
|
929
|
|
|
* |
|
930
|
|
|
* @return array |
|
931
|
|
|
*/ |
|
932
|
|
|
public function SpfRecord() |
|
933
|
|
|
{ |
|
934
|
|
|
$output = array(); |
|
935
|
|
|
foreach ($this->data['dns_records'] as $record) |
|
936
|
|
|
{ |
|
937
|
|
|
if (strtoupper($record['type']) == 'TXT' && strpos($record['txt'],'spf') !== false) |
|
938
|
|
|
{ |
|
939
|
|
|
$output[] = $record['txt']; |
|
940
|
|
|
} |
|
941
|
|
|
|
|
942
|
|
|
} |
|
943
|
|
|
|
|
944
|
|
|
return $this->Output($output, __FUNCTION__); |
|
945
|
|
|
} |
|
946
|
|
|
|
|
947
|
|
|
/** |
|
948
|
|
|
* Underscored links |
|
949
|
|
|
* |
|
950
|
|
|
* @return array |
|
951
|
|
|
*/ |
|
952
|
|
|
public function UnderscoredLinks() |
|
953
|
|
|
{ |
|
954
|
|
|
$output = array(); |
|
955
|
|
|
$dom = $this->DOMDocument(); |
|
956
|
|
|
$dom->loadHTML($this->data['content']); |
|
957
|
|
|
|
|
958
|
|
|
$links = $this->helpers->Links($dom)->GetLinks(); |
|
959
|
|
|
foreach($links as $link) |
|
960
|
|
|
{ |
|
961
|
|
|
$_link = $link; |
|
962
|
|
|
$link = parse_url($link); |
|
963
|
|
|
|
|
964
|
|
|
if(count($link) && (!isset($link['host']) OR $link['host'] == $this->data['parsed_url']['host'])) |
|
965
|
|
|
{ |
|
966
|
|
|
if(strpos($_link,'_') !== false) |
|
967
|
|
|
{ |
|
968
|
|
|
$output[] = $_link; |
|
969
|
|
|
} |
|
970
|
|
|
} |
|
971
|
|
|
} |
|
972
|
|
|
|
|
973
|
|
|
return $this->Output($output, __FUNCTION__); |
|
974
|
|
|
} |
|
975
|
|
|
} |
frnxstd /
seo-checkup
